What you need to do is to ask the bank to issue a "credit card objection statement" or similar certificate for you, and keep the original. You don't need to take care of this card, you are not responsible.
3. Your ID card was stolen. You just need to report the case to the police station and keep the receipt.
It's not your responsibility not to pay back the money, it's the responsibility of the bank's lax audit. As long as you can fully prove that you didn't apply for this card, you can ask the bank to compensate your losses and restore your credit history.
5. If you go to the People's Bank, you can check the overdraft of this card for only 2 years, but if the card swiped at that place is in the issuing bank, but you really didn't handle this card, you don't need this detailed usage record.