Auto renewal built into your contract
If you signed a long term contract chances are it's longer than you think. Some companies include a 1 year auto renewal clause in their contracts, Some have even included a 5 year renewal! What that means is if you don't cancel your contract 30 days before the 3 or 5 years run out it automatically renews for another year or more! So the day you sign your 3 year contract make sure to mark your calendar 34 months and 29 days from then, unless you think you'll remember. Your alarm company is betting you don't. Guess what your locked in for another year, at the higher price you paid to get your "Free" system.