Two months ago I went to return my equipment and cancel service as I switched to FIOS. I was told that I could wait for an hour at the Optimum store or I could return the equipment back using a mailing label available from their web site and include a copy of my last bill. I opted to do the latter. I wrote "Cancel" on the bill. However, two months on I still was getting billed for services I did not use! When I called the New Jersey Customer Service phone number I was told that I HAVE TO CALL THE "Retention Department" IN ORDER TO CANCEL MY SERVICE. I did so and got to listen to an attempt to retain me as a customer for 10 minutes before the representative would cancel my service. They would NOT waive the fees previously billed. I think this practice is very poor and will never opt for Optimum again. So BE WARNED if you want to cancel your service - they make it difficult.