Unhappy customer

Since I did my complaint in January, I received an email saying I have to talk to the branch manager, I called the store I bought my bed at they told me I have to log another call due to they do not do bed exchange from their side. seriously, guys, this is a joke. I want my bed to be changed it's like I am sleeping on 10 years old bed. horrible quality it doesn't feel like the bed i tested in the store. can someone get back to me with a way forward coz am tired of this bed now?