Telkom mess up,who pays?

I wish i didnt need to add a rating... I have in April connected with Telkom (Fiber) taking the package @ 299 and needed to make first payment end May 2024.

I've spoken to billing and sales dept, discussing what I could and couldnt say in order to be an active client with a debit that suppose to go off with the exact amount as above agreed. First debit did not go off from my account so I've gone into a store to pay. My agreed amount R299. After this I've received my first statement that now shows R315?????? Next month, I paid my agreed amount R299. Received the second statement I'm owing R533.70 that comes from where?, you guys are big at ****ming people with all your charges "the extras that they do not tell customers about" this happens to my mum aswell btw after 2months of having her wifi installed she has a bill of R2000. I've sent an email too. Although ive been making payments I've received messages of being in arrears and im going to be disconnected.

Wednesday 26 June 24 @9am, a message stating I've been disconnected. so much inconvenience, there is no proper communication with you and your customers, I have in my mail too said I will not be doing other than what I've discussed when taking this plan on, I have a special needs kid whom I need to track on a daily aside from my personal issues i haven't been properly assisted. Not once was i called or mailed or sms'd notifying me of an increase. I have a debit set with the amount R299 Which no one bothered to correct knowing they had an increase same as they failed to inform me about any of this whilst talking me into taking this contract in April 'the same time as they had the increase'... Im sitting with rejection fee's and a bill i didnt pay but they failed to mention their system debit didn't fall through.. I may have not made entire sense here but im damn angry with bills i simply don't know about. What to do???