Bad bad bad service, no professionalism at all.

My car has been giving power event alert since cartract installed their unit. I always thought the problem is with the car, even after I fixed my car this alert persisted, I called and I was told someone will come fix in 2days, every day I call I get put through, put through, put through. Like right now, I just called I don't know how many times I been through and always told its the wrong department. I pay you guys every month, this is not the service I'm expecting. You guys just need to fix your unit or replace it that's all. I been paying for a long time for something that's is faulty. No