Avoid cartracker at all costs!
I am only giving 1 star as you can't give less.
We went to add a tracker to my car. We walked in, spoke to the salesman and he signed us up. Not once did he inform us this is a 3 year contract. He had time to joke about my signature, he did not listen to my request of timing for installation and he was sick as a dog making me share a pen with him without sanitiser.
He asked me to sign the contract saying its the direct debit, that I will be debited R159 per month and that I'm also signing for installation. So why could he not tell us we were signing up to a 3 year contract and that if we want to cancel before the 3 years is up, we would have to pay over R2000 to remove the device. 
To cancel this is so hard. There is no way to contact them for cancellation, no one ever gets back to you but let your debit be late, they will harass you from 7am! 
We were not fully informed of the contract conditions (if you purchase a phone contract or car, they go through ALL terms and conditions outlining the contract length) and we did not receive a copy of the contract. 
I tried to cancel this in February. They are still, to this day, "investigating" this and funny enough, they still charge you while "investigating".
I cancelled my direct debit at the bank and they still managed to take money out of my account. My advice is if you want a car tracker, research all other companies but under no circumstance go to cartracker. Their service is the worst and they do not inform you of what you're signing up to along with the fact they clearly have no regard for their customers, they just want your money and couldn't care about anything else.