Defy dissapointing!

I am so dissapointed DEFY! We bought a tumble dryer from Makro online on the 24th of March 2021. It was delivered and the first time I used it, it did only one cycle, then broke down. The service agent told us that he needs to order some parts for it, but I felt that it is brand new and needs to be replaced. I spoke to an agent on 21/4, sent the proof of payment. Was promised feedback asap, none up until today. I made contact twice in this time and was promised feedback before the end of Friday, 30 th of April. What can I say, still NO answer. I always trusted DEFY, but not anymore! What happened to service? I NEED MY TUMBLE DRYER PLEASE EXCHANGE! How hard can this be?