MTN - shocking!

MTN phoned earlier trying to sell a new bundle data deal. R129 of 2 gigs of data. The agent tells us that we are using more data on our package and by taking this deal, we will save money! Started asking questions about how much data do we currently use and the cost thereoff, and she tells us she does not have access to that information? So where does she come from telling us we are using more! We need to phone the call center to confirm?? Are you not working or MTN?? On what information do you base to sales pitch and when asked questions, you are unable to answer anything! Phoned the call center - 1st round - why do you asked for the cellphone number on your IDVR and when the agent answers, you have to give the number again? Went through the whole verification process only to be told afterwards the system is hanging and need to phone back? When asked if they can phone me, the answer is NO, they do not call customers back?????? SERIOUSLY!!?? MTN is not phoning customers back with a problem.....? 2nd round of phoning, again enter number in IDVR and have to give it again when agent answers! Agent confirms we are NOT using more data than what is allocated as standard on the contract - so where does this sales person come from and how many people are being caught out with this!! Really shocking from MTN and worst thing ever to hear MTN is not phoning customers back! Being a client since 2001 - guess what... I am moving!