Look elsewhere, they think they do you a favor, I cancelled service and they never returned credit balance of over $103. I called several times and they said they will call me back and give me the refund of my credit balance, but they never called back nor refunded my credit balance. I do not recommend Cablevision to anyone!
Pros: Seems good when you start, but when you learn more you see all of their many faults.
Cons: Lacks features others offer, less reliable, internet speed drops with more users, no refund after cancellation!