Stop spamming me with unnecessary calls

Just want to start off by saying Shonisani Shadung gets a full 5 stars from me. However I’m not happy with Cartrack’s overall service! They were super quick to get a sale— and I mean QUICK. I enquired on the website and received a call from their agents almost immediately. I signed up but everything from there went downhill. Getting a fitment scheduled was a nightmare and it seems like there’s a lot of chaos there. I eventually got a date and time but kept calling getting calls from the scheduling department asking if I have an appointment. I have my tracker fitted but still get spammed with calls on a daily basis and I wonder why a company this big doesn’t have a streamlined system where all the agents can see the progress of a client’s application! Please stop following up on whether I have an appointment date- you should be able to see on the system that I had it fitted already. I don’t want to receive anymore calls unless it’s regarding my car being in imminent danger.