Rent Recovery Solutions Debt Collection Complaint

Rent Recovery Solutions Debt collection department,

Other (phone, health club, etc.) False statements or representation Attempted to collect wrong amount Missouri

I rented an apartment for 1 year, I gave a 45 day written notice prior to the date my lease was up and moved, 3 months later I received a letter stating I owed them over $3000.00, for not giving notice and early termination of my lease. Now the debt is listed on my credit report and I have little proof that I did give them notice and I have both my lease from there and the lease from the place I moved to, which the dates from those prove that I did n't terminate my lease early. I do not know how to go about getting this removed from my credit and I have never had any other problems with any places that I have rented before then and after.