Paying interest on debts
Q:
1. I have a very old debt of almost 15 years back that some of the places I have the debt with has written it off and some is still charging me interest. Am I liable to pay this interests?
2. And on the other hand a friend bought things on my account also 15 years ago and the place is still holding me accountable, however the person that bought the goods have passed away. Am I liable for this account?