OK furniture store and Defy appliances are not reliable

My mother purchased a defy double door fridge at OK furniture store in Atteridgeville on 18/06/2021. The sales person also managed to sell her an extended warranty as well, the fridge started giving us problems in April 2024, it took defy over a month to come and fix it because the guy from OK furniture store forgot to report it but it was eventually fixed. Now the fridge has started again 5 months later it doesn't blow cold air anymore and the papers we have states that the fridge comes with a standard 5 years warranty plus my mother added a 3 year extended warranty on top of that but on the papers it states that the extended warranty kicks in in 2026 after the manufacturers warranty is done, when we call defy they telling us stories that it has changed to 3 years and it's not 5 years anymore and we should talk to the store, our food has gone to waste, this fridge is still new, Defy products do not last, the store should come up with a plan to either get someone to fix it proper or give us a new one and settle this matter with Defy cause we are definitely not buying this product anymore SKU no:213679 extension of manufacturers warranty or guarantee: ***.