I sent out a bunch of validation letters to both creditors and collection agencies about a week ago. Today, I received a response from the original creditor that returned the original validation letters I mailed to them and told me to contact XXXXX Collection Agency because they sold the debt to them. They also stated the CRA's they report to (and they do appear on all 3 reports), my name, address, account number, etc. What should I do at this point? Do I mail them the 60 day validation letter or demand they haven't validated that this debt was ever valid in the first place? Thanks..