2 years after canceling with ADT, they are still giving me headaches

As part of the "free" alarm system they sell you when you sign up, adt changes the installer code of your alarm. Once you have completed you 2 year contract, the alarm system is now owned by you. But should you leave adt, the only way to access that functionality is to completely factory reset the system. They will refuse to give you that code without a R500 callout fee. Pardon me for being offended, but I've been sold a device, and locked out of its full functionality unless I pay R500 extra. Make sure that you request they restore the alarm code when canceling with adt, or they'll try bleed you for more money.