Substandard quality beds and service

I bought a bed from a restonic outlet/shop and after two years the springs are worn out and it is making squicky sounds. The bed is still under warranty. I contacted restonic and they asked me to send photos and a video but after two weeks they have not responded to my complaint. When ever I send follow up watsapp messages I get a response that they will get back to me. My warranty will expiry soon and I think they are delaying the process so that the warranty can expire.