Patetic Service at Premium Prices

Pathetic Service. I have 3 tracking units in 3 of my vehicles, I have received a letter advising me of a yearly increase on which it lists only 2 vehicles. The vehicles listed on the letter and on my monthly invoices differ, the vehicles listed on my monthly invoices I do not own. I have recently sold a vehicle and require the tracking unit installed to be de-installed and reinstalled in a new vehicle purchased, I also require any additional unit however my business is not valued at Netstar. I have called Netstar and spoken to Michelle the lady handling my account and was told she will call me back regarding my queries to date I am yet to receive that call she went on to further lie that she never spoke to me. I have emailed Escalations Retentions and Goodwill, stating that I was going to move the business to cheaper better service provider, which to date I have not received any feedback. I have called in and spoke to Ntombikayise Mashigi and stated same as well as requested proof of my contract with Netstar and advising her of my decision to change service providers and I am yet to have feedback from her. They offer pathetic service and charge premium prices.