Makro dishwasher - don't buy from them

I bought a dishwasher and purchased an additional extended warranty from Makro. The dishwasher started to give problems 2 months ago and I contacted them to get the dishwasher repaired with my warranty. In the last 2 months they had to collect and fix the dishwasher 5 times and every time it comes back with the same issue. Every time I need to go into the Makro branch and fill in forms to report the problem, because the branch doesn't answer their phones. The last time they even sent back the dishwasher and told me that I **** and that there is nothing wrong with the dishwasher. I am really fed up with this now and even in this Covid period, every time I need to let the guys collecting the dishwasher into my house which I am not very comfortable with.