How can I show Lowest Price from a specific Country only?

Question

Question Background:

I am using the ProductAdvertising API to pull back details based on Keywords and a SearchIndex.

The following are the Response Groups I'm using:

    r1["Service"] = "AWSECommerceService";
    r1["ItemPage"] = 1;
    r1["ResponseGroup"] = "Large,Offers";
    r1["AssociateTag"] = "compar0c2-21";
    r1["Operation"] = "ItemSearch";
    r1["Condition"] = "New";
    r1["Availability"] = "Available";
    r1["SearchIndex"] = "ProductToSearchFor"
    r1["Keywords"] = "ItemCatagory"

The Issue:

This is giving me the data I want but the lowest price can be from sellers from all over the world. I want the lowest prices from the UK only how can I do this? The following Screenshot should show what I mean:

The lowest price is from New York which is not what I want, the other prices shown are from New York and Japan I want UK sellers only.

This is an example of my response I am receiving of an <Item> element in the XML

<Item>
  <ASIN>B0072C8SMQ</ASIN> 
  <DetailPageURL>http://www.amazon.co.uk/Omega-Seamaster-Diver-Co-Axial-212-30-41-20-01-003/dp/B0072C8SMQ%3FSubscriptionId

%3DAKIAIFERUZJXWJ3Y2USA%26tag%3Dcompar0c2-21%26linkCode%3Dxm2%26camp%3D2025%26creative%3D165953%26creativeASIN

%3DB0072C8SMQ</DetailPageURL> 
<ItemLinks>
<ItemLink>
  <Description>Add To Wishlist</Description> 
  <URL>http://www.amazon.co.uk/gp/registry/wishlist/add-item.html%3Fasin.0%3DB0072C8SMQ%26SubscriptionId%3DAKIAIFERUZJXWJ3Y2USA

%26tag%3Dcompar0c2-21%26linkCode%3Dxm2%26camp%3D2025%26creative%3D12734%26creativeASIN%3DB0072C8SMQ</URL> 
  </ItemLink>
<ItemLink>
  <Description>Tell A Friend</Description> 
  <URL>http://www.amazon.co.uk/gp/pdp/taf/B0072C8SMQ%3FSubscriptionId%3DAKIAIFERUZJXWJ3Y2USA%26tag%3Dcompar0c2-21%26linkCode

%3Dxm2%26camp%3D2025%26creative%3D12734%26creativeASIN%3DB0072C8SMQ</URL> 
  </ItemLink>
<ItemLink>
  <Description>All Customer Reviews</Description> 
  <URL>http://www.amazon.co.uk/review/product/B0072C8SMQ%3FSubscriptionId%3DAKIAIFERUZJXWJ3Y2USA%26tag%3Dcompar0c2-21%26linkCode

%3Dxm2%26camp%3D2025%26creative%3D12734%26creativeASIN%3DB0072C8SMQ</URL> 
  </ItemLink>
<ItemLink>
  <Description>All Offers</Description> 
  <URL>http://www.amazon.co.uk/gp/offer-listing/B0072C8SMQ%3FSubscriptionId%3DAKIAIFERUZJXWJ3Y2USA%26tag%3Dcompar0c2-21%26linkCode

%3Dxm2%26camp%3D2025%26creative%3D12734%26creativeASIN%3DB0072C8SMQ</URL> 
  </ItemLink>
  </ItemLinks>
  <SalesRank>30472</SalesRank> 
<SmallImage>
  <URL>http://ecx.images-amazon.com/images/I/51dpiEHcAoL._SL75_.jpg</URL> 
  <Height Units="pixels">75</Height> 
  <Width Units="pixels">46</Width> 
  </SmallImage>
<MediumImage>
  <URL>http://ecx.images-amazon.com/images/I/51dpiEHcAoL._SL160_.jpg</URL> 
  <Height Units="pixels">160</Height> 
  <Width Units="pixels">97</Width> 
  </MediumImage>
<LargeImage>
  <URL>http://ecx.images-amazon.com/images/I/51dpiEHcAoL.jpg</URL> 
  <Height Units="pixels">500</Height> 
  <Width Units="pixels">304</Width> 
  </LargeImage>
<ImageSets>
<ImageSet Category="variant">
<SwatchImage>
  <URL>http://ecx.images-amazon.com/images/I/31fExLiRjVL._SL30_.jpg</URL> 
  <Height Units="pixels">10</Height> 
  <Width Units="pixels">30</Width> 
  </SwatchImage>
<SmallImage>
  <URL>http://ecx.images-amazon.com/images/I/31fExLiRjVL._SL75_.jpg</URL> 
  <Height Units="pixels">25</Height> 
  <Width Units="pixels">75</Width> 
  </SmallImage>
<ThumbnailImage>
  <URL>http://ecx.images-amazon.com/images/I/31fExLiRjVL._SL75_.jpg</URL> 
  <Height Units="pixels">25</Height> 
  <Width Units="pixels">75</Width> 
  </ThumbnailImage>
<TinyImage>
  <URL>http://ecx.images-amazon.com/images/I/31fExLiRjVL._SL110_.jpg</URL> 
  <Height Units="pixels">36</Height> 
  <Width Units="pixels">110</Width> 
  </TinyImage>
<MediumImage>
  <URL>http://ecx.images-amazon.com/images/I/31fExLiRjVL._SL160_.jpg</URL> 
  <Height Units="pixels">52</Height> 
  <Width Units="pixels">160</Width> 
  </MediumImage>
<LargeImage>
  <URL>http://ecx.images-amazon.com/images/I/31fExLiRjVL.jpg</URL> 
  <Height Units="pixels">164</Height> 
  <Width Units="pixels">500</Width> 
  </LargeImage>
  </ImageSet>
<ImageSet Category="variant">
<SwatchImage>
  <URL>http://ecx.images-amazon.com/images/I/41FfUhyWQUL._SL30_.jpg</URL> 
  <Height Units="pixels">30</Height> 
  <Width Units="pixels">24</Width> 
  </SwatchImage>
<SmallImage>
  <URL>http://ecx.images-amazon.com/images/I/41FfUhyWQUL._SL75_.jpg</URL> 
  <Height Units="pixels">75</Height> 
  <Width Units="pixels">60</Width> 
  </SmallImage>
<ThumbnailImage>
  <URL>http://ecx.images-amazon.com/images/I/41FfUhyWQUL._SL75_.jpg</URL> 
  <Height Units="pixels">75</Height> 
  <Width Units="pixels">60</Width> 
  </ThumbnailImage>
<TinyImage>
  <URL>http://ecx.images-amazon.com/images/I/41FfUhyWQUL._SL110_.jpg</URL> 
  <Height Units="pixels">110</Height> 
  <Width Units="pixels">88</Width> 
  </TinyImage>
<MediumImage>
  <URL>http://ecx.images-amazon.com/images/I/41FfUhyWQUL._SL160_.jpg</URL> 
  <Height Units="pixels">160</Height> 
  <Width Units="pixels">128</Width> 
  </MediumImage>
<LargeImage>
  <URL>http://ecx.images-amazon.com/images/I/41FfUhyWQUL.jpg</URL> 
  <Height Units="pixels">500</Height> 
  <Width Units="pixels">401</Width> 
  </LargeImage>
  </ImageSet>
<ImageSet Category="variant">
<SwatchImage>
  <URL>http://ecx.images-amazon.com/images/I/31MpUA8mLjL._SL30_.jpg</URL> 
  <Height Units="pixels">15</Height> 
  <Width Units="pixels">30</Width> 
  </SwatchImage>
<SmallImage>
  <URL>http://ecx.images-amazon.com/images/I/31MpUA8mLjL._SL75_.jpg</URL> 
  <Height Units="pixels">38</Height> 
  <Width Units="pixels">75</Width> 
  </SmallImage>
<ThumbnailImage>
  <URL>http://ecx.images-amazon.com/images/I/31MpUA8mLjL._SL75_.jpg</URL> 
  <Height Units="pixels">38</Height> 
  <Width Units="pixels">75</Width> 
  </ThumbnailImage>
<TinyImage>
  <URL>http://ecx.images-amazon.com/images/I/31MpUA8mLjL._SL110_.jpg</URL> 
  <Height Units="pixels">55</Height> 
  <Width Units="pixels">110</Width> 
  </TinyImage>
<MediumImage>
  <URL>http://ecx.images-amazon.com/images/I/31MpUA8mLjL._SL160_.jpg</URL> 
  <Height Units="pixels">80</Height> 
  <Width Units="pixels">160</Width> 
  </MediumImage>
<LargeImage>
  <URL>http://ecx.images-amazon.com/images/I/31MpUA8mLjL.jpg</URL> 
  <Height Units="pixels">250</Height> 
  <Width Units="pixels">500</Width> 
  </LargeImage>
  </ImageSet>
<ImageSet Category="primary">
<SwatchImage>
  <URL>http://ecx.images-amazon.com/images/I/51dpiEHcAoL._SL30_.jpg</URL> 
  <Height Units="pixels">30</Height> 
  <Width Units="pixels">18</Width> 
  </SwatchImage>
<SmallImage>
  <URL>http://ecx.images-amazon.com/images/I/51dpiEHcAoL._SL75_.jpg</URL> 
  <Height Units="pixels">75</Height> 
  <Width Units="pixels">46</Width> 
  </SmallImage>
<ThumbnailImage>
  <URL>http://ecx.images-amazon.com/images/I/51dpiEHcAoL._SL75_.jpg</URL> 
  <Height Units="pixels">75</Height> 
  <Width Units="pixels">46</Width> 
  </ThumbnailImage>
<TinyImage>
  <URL>http://ecx.images-amazon.com/images/I/51dpiEHcAoL._SL110_.jpg</URL> 
  <Height Units="pixels">110</Height> 
  <Width Units="pixels">67</Width> 
  </TinyImage>
<MediumImage>
  <URL>http://ecx.images-amazon.com/images/I/51dpiEHcAoL._SL160_.jpg</URL> 
  <Height Units="pixels">160</Height> 
  <Width Units="pixels">97</Width> 
  </MediumImage>
<LargeImage>
  <URL>http://ecx.images-amazon.com/images/I/51dpiEHcAoL.jpg</URL> 
  <Height Units="pixels">500</Height> 
  <Width Units="pixels">304</Width> 
  </LargeImage>
  </ImageSet>
  </ImageSets>
<ItemAttributes>
  <Binding>Watch</Binding> 
  <Brand>Omega</Brand> 
<CatalogNumberList>
  <CatalogNumberListElement>212.30.41.20.01.003</CatalogNumberListElement> 
  </CatalogNumberList>
  <EAN>0640522174386</EAN> 
<EANList>
  <EANListElement>0640522174386</EANListElement> 
  </EANList>
<ItemDimensions>
  <Weight Units="hundredths-pounds">39</Weight> 
  </ItemDimensions>
  <Label>Omega</Label> 
  <Manufacturer>Omega</Manufacturer> 
  <Model>212.30.41.20.01.003</Model> 
  <MPN>212.30.41.20.01.003</MPN> 
<PackageDimensions>
  <Height Units="hundredths-inches">440</Height> 
  <Length Units="hundredths-inches">670</Length> 
  <Weight Units="hundredths-pounds">255</Weight> 
  <Width Units="hundredths-inches">660</Width> 
  </PackageDimensions>
  <PackageQuantity>1</PackageQuantity> 
  <PartNumber>212.30.41.20.01.003</PartNumber> 
  <ProductGroup>Watch</ProductGroup> 
  <ProductTypeName>WATCH</ProductTypeName> 
  <Publisher>Omega</Publisher> 
  <Studio>Omega</Studio> 
  <Title>Omega Seamaster Diver 300 m Co-Axial 212.30.41.20.01.003</Title> 
  <UPC>640522174386</UPC> 
<UPCList>
  <UPCListElement>640522174386</UPCListElement> 
  </UPCList>
  </ItemAttributes>
<OfferSummary>
<LowestNewPrice>
  <Amount>247980</Amount> 
  <CurrencyCode>GBP</CurrencyCode> 
  <FormattedPrice>£2,479.80</FormattedPrice> 
  </LowestNewPrice>
  <TotalNew>6</TotalNew> 
  <TotalUsed>0</TotalUsed> 
  <TotalCollectible>0</TotalCollectible> 
  <TotalRefurbished>0</TotalRefurbished> 
  </OfferSummary>
<Offers>
  <TotalOffers>1</TotalOffers> 
  <TotalOfferPages>1</TotalOfferPages> 
  <MoreOffersUrl>http://www.amazon.co.uk/gp/offer-listing/B0072C8SMQ%3FSubscriptionId%3DAKIAIFERUZJXWJ3Y2USA%26tag%3Dcompar0c2-

21%26linkCode%3Dxm2%26camp%3D2025%26creative%3D12734%26creativeASIN%3DB0072C8SMQ</MoreOffersUrl> 
<Offer>
<OfferAttributes>
  <Condition>New</Condition> 
  </OfferAttributes>
<OfferListing>
  <OfferListingId>xEcyAMJL84cxvF%2BBjncJMoZfAR0GvbqG1LLRal0iDmyldGMHib9EBz0%2BVYWa6Mb1N

%2FIgW3EVvVYPE78iuB0q7QGCie2J5oFSn5UszusOe1rd29OZiUE6%2FWsaXL7vkuqmQrWO7gTTn5E154Kw85dz5FOF0R1NoD0M</OfferListingId> 
<Price>
  <Amount>247980</Amount> 
  <CurrencyCode>GBP</CurrencyCode> 
  <FormattedPrice>£2,479.80</FormattedPrice> 
  </Price>
  <Availability>Usually dispatched within 1-2 business days</Availability> 
<AvailabilityAttributes>
  <AvailabilityType>now</AvailabilityType> 
  <MinimumHours>24</MinimumHours> 
  <MaximumHours>48</MaximumHours> 
  </AvailabilityAttributes>
  <IsEligibleForSuperSaverShipping>0</IsEligibleForSuperSaverShipping> 
  <IsEligibleForPrime>0</IsEligibleForPrime> 
  </OfferListing>
  </Offer>
  </Offers>
<CustomerReviews>
  <IFrameURL>http://www.amazon.co.uk/reviews/iframe?akid=AKIAIFERUZJXWJ3Y2USA&alinkCode=xm2&asin=B0072C8SMQ&atag=compar0c2-

21&exp=2015-11-11T22%3A11%3A40Z&v=2&sig=XtADbxHdEnxWODWBtgqIaxyMvxyJof03t9HjDHxSMm4%3D</IFrameURL> 
  <HasReviews>true</HasReviews> 
  </CustomerReviews>
<EditorialReviews>
<EditorialReview>
  <Source>Product Description</Source> 
  <Content>Omega Seamaster Diver 300 m Co-Axial no Product Detail</Content> 
  <IsLinkSuppressed>0</IsLinkSuppressed> 
  </EditorialReview>
  </EditorialReviews>
<BrowseNodes>
<BrowseNode>
  <BrowseNodeId>199483031</BrowseNodeId> 
  <Name>Luxury Watches</Name> 
<Ancestors>
<BrowseNode>
  <BrowseNodeId>328229011</BrowseNodeId> 
  <Name>Categories</Name> 
  <IsCategoryRoot>1</IsCategoryRoot> 
<Ancestors>
<BrowseNode>
  <BrowseNodeId>328228011</BrowseNodeId> 
  <Name>Watches</Name> 
  </BrowseNode>
  </Ancestors>
  </BrowseNode>
  </Ancestors>
  </BrowseNode>
<BrowseNode>
  <BrowseNodeId>246334031</BrowseNodeId> 
  <Name>Watches Outlet</Name> 
<Ancestors>
<BrowseNode>
  <BrowseNodeId>401431011</BrowseNodeId> 
  <Name>Regular Stores</Name> 
<Ancestors>
<BrowseNode>
  <BrowseNodeId>328232011</BrowseNodeId> 
  <Name>Substores</Name> 
<Ancestors>
<BrowseNode>
  <BrowseNodeId>328228011</BrowseNodeId> 
  <Name>Watches</Name> 
  </BrowseNode>
  </Ancestors>
  </BrowseNode>
  </Ancestors>
  </BrowseNode>
  </Ancestors>
  </BrowseNode>
  </BrowseNodes>
  </Item>
<Item>

Answer 1

<LowestNewPrice>
  <Amount>247980</Amount> 
  <CurrencyCode>GBP</CurrencyCode> 
  <FormattedPrice>£2,479.80</FormattedPrice> 
</LowestNewPrice>

It's already showing you lowest price.

Answer 2

Attach your request details so we can have an advance look at your problem. As being said above, you already have the lowest price.