Prohibition of Debt Collection Without Making a Prozbul

In the previous Shemitah, I forgot to make a Prozbul, and I had two friends who owed me money. Despite not making a Prozbul, I demanded the money from them. One asked me if I had made a Prozbul, and I admitted that I hadn't, and he didn't pay me. The second one paid. Now I want to know if I committed a transgression, and if so, I want to repent if I didn't act properly. Honorable Rabbi, what should I do?

Hello, first let's detail the law: if the lender demands the debt, there are those who say that even if the borrower ultimately did not pay, he transgresses the prohibition on the very act of demanding. If the lender collected the debt, there are those who say that besides the aforementioned prohibitions, the money collected is considered robbery in his hands. Therefore, with the friend who paid, contact him and return the money. Regarding the demand from both friends, you need to do Teshuva. We are in the days of mercy and forgiveness, you can do Teshuva now, and it is very simple: regret what happened, confess before the Creator of the world verbally, and resolve not to sin in the future. Wishing you a good inscription and sealing in the Book of Life.