Question for OK FURNITURE - HEAD OFFICE, Customer Care, Contact Details

I bought a base set at ok Louis trchardt on 14/12/******** for my child two weeks later I realized that the mattress is sagging n the base worn out. My wife reported the dissatisfaction I also visited the store manager called Peggy she promised to respond by email and days are passing without response I end reminders and nothing happens i have informed the manager that if she doesn’t replace the base set i am returning the base set and demand refund still no response. I m asking your intervention from this rude n incompetent store manager who cannot resolve my disatisfaction or at least update me on the progress she even refused to give me the complaint reference number only to I will be called and no one is calling