(2) If it is determined that you have not filled in the credit card application form, you should immediately sue the bank to the court and ask the bank to restore the credit record and eliminate the debt. In the prosecution, you should ask for handwriting identification, which is the only and most recognized evidence of the court.
(3) Credit card bills and signatures can be authenticated within half a year of credit card consumption. If the bank deliberately delays this time (raises an objection to the bank within six months of proof), then the responsibility lies with the bank.