A few years back I had a UK friend of mine get me a Costa card and mail it to me. Although there seems to be some Costa locations in the US (I may be wrong), I doubt my UK card is going to be accepted here in the US.It's quite upsetting that the Starbucks rewards program doesn't allow to scan and attain points across the pond in the UK. You know, the barista scans the barcode from the app and it accumulates points for redeeming later. It also doesn't allow me to install the UK Starbucks app either. So stuck with the USA app in the UK LOL