I cancelled my AT&T wireless account on Jan 20th. I did not have any contractual committment. When I had initially signed up for service, I was billed for the prorated first month of service PLUS the full second month. From then on, I have been paying for my service one month ahead of time. Since my billing cycle was from the 3rd to the 2nd, I expected to have to pay only for the 18 days in January that I did use the service. Since I had been paying for the next month's usage, I held off paying my last bill expecting my final bill to... read full review »