Disappointing Service

I installed a tracking device on my vehicle 4 years ago. I took the rental option where I have to pay for the device and services for a 3 year period. I have long passed that period and therefore the device should be mine and I should then be moved to paying the amount charged for people who buy the device. The most expensive option offered by tracker is R200 a month and I am currently paying R260. I have contacted tracker about this and was helped by Nhlakanipho Mabaso who then said I would be charged R220 , which was still weird because it makes better sense to cancel my current service then get a completely new account with tracker and a new device. Mr. Mabaso understood my not so complicated logic and agreed to help...I am still being charged R260 on my account. I honestly dont want to have to cancel and go through the whole process of having a new tracker installed into my car purely because of bad administration which shouldnt be happening since the admin and pressure is surely much higher if a car does get ****** and it doesnt make sense to trust in a company that cant follow through with such simple request...I can only imagine the horror if my car actually gets ******