I know this has been answered somewhere, but what are the remedies if a collector sends you a dunning letter and you request validation. They don't provide any form of validation but the account is now with another firm. Do I simply send another request for validation and cease/desist letter? I really have no way to verify if the original collector is the one that sent the account to the next. If so, does this constitute continued collection effort by original collector?
The original CA has ceased collection activity. You need to start all over again with the new one. The good news is that it should be easy to produce another validation request in that all you need to do is cut/paste the name of the new CA.