Appalling after sales service and inferior products

I bought a sleep master bed last year June from the Witbank branch, 2 months later,the bed springs started making noise,the middle was caving in and i could see an uneven line across the bed, which i reported in August and was told my query would be resolved in 14 working days, which didn't happen. I was taken from pillar to post just to get my bed exchanged. Finally in December they came to deliver my bed only to discover they had delivered a much chipper sleep master which i refused to accept. I had to go back to the witbank branch to report my bed for the second time only to be told that they discontinued the range and i could either accept the cheaper bed or take a more expensive bed and pay in the difference and i agreed to pay in the difference for a more expensive bed,then i waited some more and got no response. I eventually decided to return the bed and get my money back, which i communicated to them by email and calls yet to date 7 months after reporting the faulty bed,my query still hasn't been resolved.