Teka DW 605S VR01 Dishwasher: Widespread Rust Issue

I've been using the Teka DW 605S VR01 semi-integrated dishwasher for two years, and now it's starting to rust a lot in both the lower and upper racks. This problem is happening in more than half of the dishwashers installed in our 350-unit complex. I've tried different dishwasher brands and models in the past, but I've never had this issue before. It's definitely a problem with Teka's manufacturing. The rusting started right after the warranty ended, which clearly shows that there was a problem with Teka's production. I'm worried about the possible health dangers for my twins and us because of this rusting. When I asked for a replacement because of health concerns, the service asked for a ridiculously high amount of 5000 lira for two racks, which is way more than any other brand would charge. I hope Teka fixes this strange and concerning problem quickly.