After not being able to use the system for months, we cancelled the service with Alarmmonitoringservice.com.
They charged us in February for a service we had already cancelled with a bill of 29.00. I contacted them via email 3 times and there was no response so we did a chargeback.
One month later I received a nasty email stating that we did not cancel the service (which we did) and a bill for $689.35 - FOR A SINGLE 29.95 CHARGEBACK. Which the credit card company also said was invalid. (they approved the chargeack)
This company is hostile to say the least and as you see has a terrible reputation for doing the same things to others.
Do not use this company under any circumstance. It is illegal to charge chargeback fees to the customer for invalid charges - but they are attempting to do.