During my not practicing islam, I did some serious/deadly sins, of them Debt is in the top and the frightening problem is that I forget the lenders information totally! Now I'm Alhamdulillah a practicing muslim or at least I'm trying my level best to abide by the rules and regulations of islam. Now I want to purify myself by any form of expiation but I don’t know any ruling about debt which can't be repaid because of some circumstances I've like not remembering their address, their names/faces etc. Things to consider whilst answering this:-
✪I've even forget when and where the debts' occurred.
✪I'm in a major confusion whether this guy owe money from me or not because of my forgetting their faces.
✪Even if I spot someone as the lender I don’t know how much money I should repay.
✪Besides that not just Debt, I had even willingly deceived one/two of them(the lenders).
So what should I do in such critical situation? I want to purify myself from this burden. Can anybody help me out?