Never an issue with DSL!!! With a dedicated line which is not shared by all users in the neighborhood u really get unlimited usage, transfers whatever term u want to use.. This is why I rather Dsl over cable I cant put up with caps I am a heavy downloader/uploader and to have that restricted or told I would have to pay more would make me want to hurt someone at the isp. Maybe its time to think bout making the switch!!
Cancel your service. I cancelled my service last week after getting a warning letter also, same treatment about refusal to specify what the limits are. Today they called me up and asked me why I cancelled, I told them "bandwidth usage restrictions". They tried to offer the cable modem service for $15/month, I told them no.
The dsl folks tell me that a lot of people are calling in as former comcast customers. The dsl folks claim they support foreign exchanges now. Great deal with bundling (dsl, local, and long distance service) all together.