Tracker doesn't care

They say how can they care for you but honestly they do not care. I purchased a new vehicle about 3 to 4 weeks ago, I requested for tracker to install new device on my new car and cancel the other device on the old vehicle, they did the installation but still I got notified on the old vehicle's movements and all. I requested for changes to be made several times on email, nothing was done. They then notified me about payment and then I requested for the changes once again, nothing was done, I then moved my installment to my savings account hoping action will be taken if no payment received , however I turned out to be the fool. I then called , and I had to express my frustration then they sorted it out.. upon payment I made and error and paid 10k instead of 1k . I then notified them about the error, all they kept on saying is sorry wait 3 to 5 days, today I called again I'm like guys it's 3 days can this not be expedited as we already on the mark and I'm not getting updates from agents who claimed they will update me, they like inbound agents do not update customers at all.. I was like you saying how can you care for me , while you can't even assign someone to just keep the customer assured and calm that we are working on your query.. I was like I could have simply went with another business but for the past 5 years I have been a tracker client with all my 4 cars, their response is that I'm welcome to take my business somewhere else and guess what, that's what I'll be doing right away.