I received the repayment information of the piggy bank inexplicably.

Using the loan service of piggy bank, the mobile phone number was mistakenly entered into the piggy bank system, and the mobile phone number was stolen.

1. Loan service using piggy bank: It's time to repay. If you borrowed money and haven't paid it off, then you will receive repayment information.

2. The mobile phone number was mistakenly entered into the piggy bank system: the piggy bank service has never been used, so it may be that the mobile phone number was mistakenly entered into the piggy bank system, resulting in the receipt of repayment information.

3. The mobile phone number was stolen: I never used the piggy bank service, but I received the repayment information, so it may be that the mobile phone number was stolen. Someone registered the piggy bank account with the mobile phone number and borrowed money.