The mobile phone number used by the elderly is used by others, and the payment is overdue.

Judging from what you said. The question you mentioned still depends on the situation. First of all, we must determine whether the old man is using a smart phone. If so, let's see if Alipay has been downloaded on the mobile phone. Now some elderly people are using smart phones and Alipay. If not, in this case, you must repeatedly confirm with him whether to open Alipay.

If there is no last one, then you can be sure that the person who opened the Alipay flower garden under the guise of a mobile phone is probably someone around him and someone he is familiar with.

Why is there such a guess? Personally, I think it's because Alipay needs to register a mobile phone number, and then use this number for SMS verification. Then start to pay, and you need ID card verification, SMS verification and identity verification when binding the bank card. Only when these things are done, can Alipay be used for payment.

Therefore, this person who knows his name, telephone number, ID number, bank card number and can still use his mobile phone is probably someone around him. Otherwise, the possibility of others stealing is too low, because at least he has the mobile phone.

So if you look at the people around him, it's hard to say whether to call the police or not. In short, you have to log in to Alipay with his account number first, and then it's up to you to call the police.