Poor quality of bed sets from Bravo Group sleeping product

I bought a bed and matress from Matress King Cornubia Mall in 2018. Within a year it had been replaced by Bravo Group Sleep products on 26/02/2019. It is now one year later and the base is full of wobbles and the mattress in very bad shape - something wrong with the springs etc. There was a guy at our home on Monday to check the base set after we complained and he agreed that the bed set has to be replaced. They now informed me to pay R1 920 on the matress recovery fee as according to them there are two spots on the matress. I have a matress protector on the matress and the mattress looks the same as when it was delivered. Do they repair the old matressess and sell it again? This is unacceptable to pay more than R10 000 for a base set which can be only used for a few months and then it needs to be replaced. I could accept it if it was a once off but now it is the second time which confirms to me that this is not a good quality of bed. PLEASE HELP as I am not going to pay any recovery fees. If they dont want to replace the bedset cost free I am going to take it further. Never again will I purchase any product manufactured by the Bravo Group. My previous bed set is 10yrs old now and I did not have any problems with it