jumbo wrote:good advice, that's the same I'd say.
Even though I suggested he contact a lawyer, I probably would do as you say. I would just pay off the debt, close the account, and forget about it. But I understand the law a little better than most people. (I'm not a lawyer though)
Definitely don't use the card again.
The trouble is, there is potentially a crime here. Doing or saying the wrong thing could have serious consequences. If you don't understand how to do this right then you should contact someone who can keep you out of trouble.
If the card belongs to the dead father and the son has used it for 10 years the bank could consider those charges fraudulent and due immediately. Since you've already told them the situation you may not have the option of paying over 8 months. You might have to pay tomorrow somehow.