Horrible customer service

The customer service at netstar is pathetic,I had my vehicle ****** on the 17/01/2021 nd the tracking device was taken out,luckily I had another tracking device on my vehicle as was lucky it was recovered. I called in at netstar to have my tracker installed again they keep on saying they will call me an nothing I have called more than 20times but I'm not getting any help,its like I'm begging you guys for service, I then decided to call in again to cancell my contract ,then they said I was going to recieve a call so that they will assist on canceling my contract. Up till today I have not recieved a call. But my Account was debited.what can I do to be helped?