Horrific service from DEFY

I've reported my oven of 3 months on 21 December 2020. After I had no response from the technician, I've contacted the Call Centre. Within a few days, the technician showed up, removed the oven from the cupboard and asked for some Q20. He sprayed the motor that was making a terrible noise with it, and promised to have the part ordered and replaced. After receiving no response by 15 February 2021, I've logged a call with the Defy Call Center via their electronic portal, as I could not get hold of anyone telephonically at the Call Centre. I've received a notification email from Defy 6 days ago, and haven't heard anything yet. 6 days, nor response? Come on Defy, I'm not used to such horrific service from you!!!