Poor quality of Restonic beds

I juts had my mattress replaced on warranty from Restonic 2 weeks ago,the new one they gave me is falling in on my side of the bed. The quality of restonic beds is really poor and it looks like they are not in any hurry to fix their mess. The old mattress that I had replaced was bought 4 years ago but you would swear it was 29 years old because the bed was sagging, the springs protruding and making noise.

How I regret buying this nonsense, I should've stuck to Edblo beds