Poor service, lack of feedback and accountability with Husqvarna Automower

Having a continued problem with a Husqvarna Robotic Automower, took it to their shop and explained the problem, and that the machine has been in and out with them almost 18 months and they are not resolving the issue. After a week called them and technician told me he was done with the machine. I explained that they needed to test the machine on grass to confirm it is working. No feedback, poor excuses, they promise to phone back. When I call: "manager just stepped out, we will call back". Needless to say, no returned call. Call again "my technician is on lunch", "the technician did not tell me that it needs to be tested on grass". Poor service, no accountability, no feedback. Seemingly they think the problem will go away if you ignore the client.........