Terrible telkom

Invoice amount almost doubled contacted Telkom and was I formed that someone in my household has requested the out of bundle option when wifi was finished. We have been using the same gigs for past 36 months have never I creased it Ias account holder contacted them once to Increase data. I could not even do it on their app. This is a ******* service provider with *********** rude agents on the other side of the phone. They just increase the debit order please advise where can I go to resolve this theft. Secondly I signed a telephone deal for 5gig day time data I received 500mb day and 5vig night when I questioned it the agents told me the deal was not for 5gig day time data what a *******. Disgusted with this service provider Never had a problem with Vodacom.