It doesn't matter, like you just said, it's a mobile phone number. Don't believe it. Usually, I contact you on a fixed telephone. The processing flow is generally like this. Let you pay the minimum first and pay slowly. The worst result is to send you a lawyer's letter first, and it is impossible to contact the police station directly first. You can return the above 500 yuan first and show your sincerity to the bank. This will give you more time, but we should hurry. I just got half killed by my credit card.