Shocking Bill and Bad Assitance

During July 2015 I received an account for my 2 gig broadband account with MTN for R2850. The contract was originally billed at R119 per month (for more than 29 months), went up to R125 with the price increase. When queries were lodged at MTN Wonderboom Junction (Pretoria) I was informed that \broadband"means \""uncapped\"". Wow what knowledge this assistant displayed. The ridiculous account was then queried with MTN and the answer received back was that 16.9 gig data was used for the month and thus the high amount. This calculates to approximately R167 per gig - is this what you get if you have broadband identified as uncapped? I wonder how MTN could change my contract from a 2 gig to the uncapped somewhere during the contract period (the increase from R119 to R125 was acceptable) and this ridiculous account billed. I wish I was as bright as the assistant to read (understand) broadband as the same as uncapped? With people \""capable\"" as this working for MTN it is no wonder that their total service is absolutely shockingly bad. They have the power and we suckers have to pay!!! """