No, the bank will only contact the cardholder himself. Others, whether they are parents, brothers, sisters or friends, are not obliged to repay. The most the bank can do is to notify the cardholder to repay.

However, if I do not repay the loan, the bank can call the police and prosecute, and I will be sentenced. If his parents don't want him to go to jail, they have to help him pay it back.