Makro reject return with no reason and refuse to replace Airfryer

Bought a Kenwood airfryer from Makro online. Delivery went fine. After 4 months the machine experience a problem with the fan that makes a lot of noise. The numbers of the dial also wipes of. I logged a return and they reject it with no reason. Still no machine that I can use. Will never buy from Makro again. Aftersales service non existing