On XXXX XXXX, 2015 I wrote a letter to Pinnacle Credit services , LLC requesting proof that this account belongs to me. To provide me with a copy of any contract sign by me with XXXX XXXX regarding this collection account. They never responded and last week I received a letter dated XXXX/XXXX/2015 from XXXX XXXX informing me that they now represent Pinnacle Credit services.