CarMax, Inc. Debt Collection Complaint

CarMax, Inc. Debt collection department,

False statements or representation Attempted to collect wrong amount Texas

My deficiency debt from Carmax was assigned to a debt collection agency, - - -. The amount was raised over $3000.00 without any proof of the interest rate or fees from the original contract. I spoke with - - initially and tried to settle this debt but have not been able to maintain any sort of communication with them. I have called multiple times and am told that someone will follow up on this case and call me back. I have also sent email correspondence on these dates ; - - 2015 - - 2015 - - 2015 I have reached out to the creditor, who still holds this debt, multiple times and have not received a single phone call, letter or email. I simply want to take care of this debt and both the creditor and the collection agency has made it near impossible to settle this debt. Since this has been such a hassle I would like to also explore the avenue of the collection agency charging unwarranted fees and interest, as the original contract was deemed null and void upon repossession of the vehicle.