Attempting to purchase items on Amazon

So I recently saw the advertising for some of Genshin's items on the amazon store and I wanted to purchase them since I have a gift card currently on my account. The problem is the account is based in the UK which means I can't order from the Hoyoverse store despite them delivering to the UK. Is there any way for me to be able to use my gift card funds to purchase the items? Sorry if this is confusing I'm not really sure how else to word it but please let me know if there's anything I can do.