Whats the point of paying for uncapped??

I had a adsl line installed this month, first there was complications getting it installed due to the order not being logged or somethin. I was quickly contacted and the problem was resolved and the line got installed so thank you very much for that. Now this morning i noticed my phone saying i have to log in to the network. After trying to go to this notification i get hit with a telkom message saying something about telkom will manage my downloads or something because im overusing it?? Whats the point of paying for uncapped then? Now i cant even access any website! I couldn't even login to my online banking. I had to use my phone to get on to hello peter. Since when is there a cap on uncapped?? Why am i then paying that much and still get this?? If i knew this was gonna happen i would have rather gone with a capped service.