Back in 2015, after a system conversion, an already processed check file was resubmitted in error. During the first few weeks after the error, several of the presented checks were returned as duplicate but we still have over $6,000 that have not been returned. I'm guessing this must be kept in escrow (or somewhere) in case we get more duplicate returns, but for how long? Is there a statute of limitations for returns? And - do we have any responsibility to go through the file, determine which ones are still outstanding, and notify the FIs? The original file was over $100,000. Seems to me the customers who had those checks paid twice would have noticed before now...

Thanks!