Empty Customer Promises and Guarantee Service

I bought a Mattress in December 2018 for R6000.00. I have logged a complain regarding my mattress on the 2nd of January as my mattress is sagging and not supporting my back as it is supposed to. Ever-since i have been given the run around, a sales person from the Atterbury store promised to have it sorted out, still waiting - now a representative from Henwood Bedding came to look at the bed and on the 14th of February and ever-since that, after been promised the matter will be restored within 5 days - i still did not receive any feedback. Really poor service and customer assistance. I have been promised to be phoned back, but still just no feedback. But i suppose we can't complain about service as there is no service anymore.