PDM ( Professional Debt Mediation ) send me letter XXXX XXXX, XXXX that my account with XXXX XXXX has been referred to them for collection and I need to send them {$78.00}. The bill from XXXX XXXX ( another name XXXX XXXX was {$31.00} and was paid upon receipt by check # XXXX XXXX/XXXX/XXXX and cashed by company XXXX/XXXX/XXXX. there was a typo with year on check, but company was able to cash it. XXXX was informed ( copy of the check both sides and bank statement was provided by fax, mail and registered mail as well as PDM. Last time PDM was informed I have an attorney to present me and requested not contact me but they still sending me letter, last one XXXX XXXX, XXXX.