If this number is a post-paid real-name registration business card printing, you can withdraw the prepaid phone bill through online banking when you close the account. So I suggest you call the police. I don't know if you can get it back, but I know you can't handle it. It's a little complicated, and you don't have any evidence. If people keep biting you and filling him, it's hard to do it now because you don't admit it.