Recently, the mobile phone always receives the repayment information of ant flower bud with my mobile phone number on it. The bill reminds me, 300 yuan. Let me pay it back. on-line

This should be irrelevant. Don't use your mobile phone number for too long! The mobile phone number bound to someone else's bank card is what you use now, and Alipay has been opened. Someone changed their mobile phone number and did not untie the bank card in time, resulting in information being sent to your mobile phone.