ERC Credit Card Complaint

ERC Credit card department,

Minnesota

I have recently apply for a mortgage and I was informed that there is negative or derogatory account reference ERC. I Received a phone Call from ERC for a debt they calm i owe for my - account. I wrote a written request for validation with my signature for this account and not succeeded in respond from them and still they have not removed derogatory mark from my credit reports even after filing to disputes with the credit bureaus. I request for validation with my signature or timely remove the their record from my credit report.