High cost and poor service

ADT prices for monitoring and response is way above their competitors for the poor service they deliver. On the 13/11, i receive a call from ********** 091 agent selling new ADT packages at very low prices and its only for new customers, no loyalty for long standing clients? no price match , no discount etc

On 09 July 2017 i emailed ********** for property signage -Ticket: E7FCD ********** 5. In Oct 2017 i contacted ADT after no response on email and agent advised that Securipro will be contacted to arrange the sign boards. The next day I received a call from Securipro and it was advised the boards will be delivered, after 10 days of no delivery i called Nazley @ Securipro and she will follow up with Armed Response manager, no feedback/delivery for 3 weeks, yesterday my alarm was triggered and Armed Response was dispatched. I arrived home a few minutes before Armed Response, false alarm. I asked the Armed Response guy to please follow up on my request for signage and he says he has in his vehicle and gives me 2 after 4 months after my initial request. My question is why the delay and lack of feedback/response.

Is it time to cancel my contract with them as all you get is high cost and poor service?