Sealy noisy bed

I bought a Sealy bed a year ago and it is making a noice. I emailed the store I bought the bed from and they emailed Sealy. Tsholofelo from Sealy responded and asked me to forward her proof of purchase and they will sent someone to have a look at the bed. I did that over 6 months ago. I have emailed repeatedly and I don’t even get an acknowledgment of my email. I would not recommend Sealy to anyone.