The amount involved is enough to initiate an investigation. But who can prove that he swiped your card is a problem. It is recommended to contact him first. After obtaining evidence through video or video recording through various means. Report the crime again. Otherwise, it will alert the enemy. You can contact him and ask him when he will repay you the ten thousand yuan. Be sure to bring the amount. It doesn't matter if it's not enough. Give a deadline and so on. As long as he doesn't say he doesn't owe you money. can be used as supporting evidence. Of course, the problem of not being able to be contacted depends on you. For example, call him through another mobile phone. Or through relatives, friends, etc. Of course, since he is a friend and he has borrowed so much money, you cannot possibly not know him well. Come on