Hi, we sorry to hear that
probably their is issue with uk and us size i will make sure to check if is human mistake or system mistake however we sorry
please no worries

go to royal mail and send it to our address, we refund all plus the return cost, write me here how much u pay for it is should cost around 10-16 pound ,.. that is also the maximum amazon give us extra to refund so hope is fine

please open return request 

once we got the item back we refund all your money 

no worries