I received a collection notice for unpaid balance on my cancelled account. Having never received a billing notification for said balance, I checked online and saw that I was charged $33.66 for DSL service from 4/18-5/17, when I actually had the service only until 4/20. This is because I upgraded from ATT DSL to ATT Uverse Highspeed internet, in response to a sales call made to me on 4/16. During that sales call I asked repeatedly whether there would be any additional charges to make the change and was assured that there would be... read full review »