Very poor quality

This is not a happy customer...in less than 2yrs i have had 3 Dynamic beds..all of them with fault...So we had the Orthopedic Superior Gel for 1.3yr then the springs collapsed....then we had the Dynamic Superior for 4 months we exchanged because of matrass collapsing and now the Dynamic Supreme for 2 months and the matrass is sagging and collapsing....the answer from The Bed shop is we can pay in and upgrade....I had from the top beds to the cheapest bed with no satisfaction...there is no way i would like to pay a cent on a dynamic.