Credit card charges for wifi

Hello,


I have my credit card on auto pay set up in an account which in another friend's name . Now this friend exceeded the data usage and has incurred a penalty of $100 and now I cannot remove my credit card from the account, because it is behind a two step otp verification set up by my friend to prevent me from doing so, basically he wants me to shoulder the penalty unfairly which is quite a lot. Should I cancel my credit card, and if I do, will the pending payments go to collections, and if so, who will be responsible ? Remember its my card on another friend's account. Need urgent answer please. Thanks !