<prompt> Human: Short story:I shared my new CC info with my partner to help me reach 3k of purchase amount during the first 3 months for airlines points.We since broke up, he was still helping me with some personal purchase. Car insurance Ebay purchases with his ebay accountWe were both under the understanding he will pay me back. He is a good honest person and I trusted him. nothing was writtenHe made a bank transfer last week but the transaction got rejected for any reason. he sent me a screenshot of the transactionThe relation deteriorated over the past couple of days, I now have the impression he is ignoring me and wont pay what he owes me 1k. I really dont want to but If this needs to be escalated what would my best options? Small court claim? Claim fraud with CC company? Or Im I completely at fault by sharing my CC info without any other form of written agreement?I sent him pictures of my card via whatsapp - nothing written about back payments thanks!  <response>: Well it wouldnt be fraud if you approved the purchases for him. Since it is your card it is your debt.Your only recourse would be court but without a written contract it would be hard to prove if he denies it. This is probably just a 1000 lesson for you. 