<prompt> Human: I rented an apartment starting 082011 and signed a 1 year lease. After 6 months the sixplex was purchased by a new realtor company. The rent at the time was 595 and the new realtor company was going to raise the rent by 100 the following month. They said I had 30 days to move out or Id have to sign a new 1 year lease. I had recently been let go from work and was on unemployment so I decided to move into a friends house who had an extra room. I recently checked my credit report and it shows that I was charged by the new realtor company and they sent it to collections in the amount of 2200. The open date is on 012014. I had contacted the realtor company directly and they said that they have no file of me being in their systems. I then contacted the collections agency and they werent very informative other than saying I owed that amount for past due rent for 2 months and other expenses. The collection agency said I can dispute it but I would need to send in paperworkproof. I dont know exactly what I would send in. When I moved out, I started going back to school and stayed at my friends house for a couple years because it made sense financially. So I havent had another rental in my name since. Im not sure if it matters, but this happened in the state of Nevada.  <response>: The burden is on them to prove what they claim. Read Collections wiki on how to communicate with them, and request a debt verification. If they cant verify it they are required to stop bothering you and remove the entry from your credit reports. 