Is your debtor bankrupt? Do not consider your claim as lost and make sure that you, as a creditor, continue to meet the requirements. JARK knows how.
It is a waste and premature to consider a debt of a bankrupt debtor as lost; even if you do not expect that you will still receive anything from the trustee. There is always a chance that a disbursement will occur out of the bankruptcy assets.
It is difficult to track the status of bankruptcies; especially if you have multiple claims. JARK stands ready for you with tracking of balances. You will get a clear insight in the (low) costs, so no unpleasant surprises afterwards.