Restonic Warranty is **** advertising (bull****)

Hi. I bought a bed at sleep master in 2021. I contacted them to inform them that the stitching in seem of the mattress is coming loose. They took it further and informed restonic. I was told that I would potentially have to make a payment to replace the mattress because the guarantee has expired but not the warranty. A restonic person by the name of Leticia called me and explain the process. She rilold me to whatsapp pictures of the mattress and all other details. I sent everything away. A month later and she still did not respond to me. I have messaged her on whatsapp and called but no response. This is really bad service. I worked had and invested in the false idea of s great bed just to get this type if service. The one side of the bed is open and I can see the foam. How can I sleep on a bed like that. What's the point in having a 10-20 year warranty on a bed if it's false advertising. I am really disappointed in restonic