Uncapped to capped without permission

So Telkom decides to move me from a 4 Mb uncapped adsl line to a 4 Mb fibre 50 Gig package after i repeatedly told the sales agent I dont want a capped package as i use a lot of data monthly (180 Gig) and yet you ignored my only demand and put me on something i cant use!! Week 1 and my data is finnished!!!! I phoned in and told you to cancel my fibre and move me back if you want to \improve my internet experience\" and a week later no one called me... Fibre means nothing to me if i cant use it. Hope this will trigger the response to call me and sort out your mess."