Homechoice poor service

I ordered a Restronic base and mattress set from Homechoice. I waited almost five months for the bed. Finally I got it. The one stand piece was broken. I have the bed now for about five to six months and already the density of the mattress is not up to standard anymore. There is soft spots on the one side and the other side lies right through. I logged a call last week. A entire week passed and till now no one has phoned me back. You pay so much for poor service