Rent-A-Center

I purchased a mattress in Feb 2015. After a short period of time I started breaking out in hives but only at night. I went to the doctor several times thinking I had an allergic reaction to something. July 2 I found bed bugs. I reported it to Rent A center on July 3. Still nothing has been done to resolve the issue. I can not even sleep in my room. My carept and furniture has been infested and they are refusing to come out and pick up the mattress.