Poor service, Unacceptable fee to remove radio when cancelling the contract

After 2 years of very poor service, over 30 minutes response times (on one occasion it was 45 minutes and another I had to call them to ask someone to come over to my property!) and promises from various managers for 2 free months to compensate for the poor service I had finally decided to cancel my contract. This process in itself took many many calls and emails to get the confirmation of cancellation and only to be told I have to pay for the radio to be removed at a cost of almost the same monthly amount I currently pay for my contract with National Security & Fire! Their service is one of the worst I have experienced in this industry and the additional charge should not be for my own expensive.