tracker connect

i have been using tracker from 2016,so i traded my car and bought a new car and requested Tracker to transfer the unit to the new car, however i was told i had to pay installation fee as it's a new account. Agent told them its treated as a new client. felt disappointed why should i pay removal and installation fee if I'm still your client ,I'm continuing with the old plan. Requested to cancel their services and got a new tracking company, they did not even charge installation fee.