WORST COMPANY TO DEAL WITH ON POOR QUALITY PRODUCTS

I am so disappointed with the quality of the mattress I bought from Sleepmasters Carnival Mall which belongs to Restonic SA. I have laid a complaint with Sleepmasters Carnival and Restonic SA with in the warranty period regarding the poor quality of the mattress on the 24th of Dec 2022. After numerous calls(because they don't phone or reply to any calls) They advised the issue will be sorted in January, today it is 15 Feb 2023. On the 3rd of Feb 2023 I receive a call to pay a difference in to do an upgrade on a better quality mattress, which I have paid. On the 13th of Feb 2023 Restonic SA sent a rejection claim, after paying an additional amount!!!??? Why allow to pay for an upgrade and a week later do a rejection?? **********!!! NO one viewed the mattress but their conclusion was the mattress was "dirty/stained" but excepted the second payment??? How did you make a final decision if NO one has viewed this mattress? There is fluff material on the mattress from a bed sheet (which is normal when you have to cover your mattress to sleep on), that I can confirm, but there are NO stains/ marks on this mattress? The springs have pierced the mattress? The mattress is sagging? This is unprofessional, an unacceptable service!!! I will never recommend this companies to anyone, there should be a zero rating!!! I wish I could post pictures to this review and all correspondence of how pathetic, *********** and unprofessional they treat their customers!!