Vodacom fibre and billing department pathetic service

Ive had non stop issues with vodacom fibre since i signed up in nov 2022 for the black friday 100mbs up n down deal. The line was only fitted by end of jan 2023 It was first 3 months free thereafter pay only R499 and i even had the proof of the promo n sent it in twice. The first month they debited me R900 n it was rectified by billing department, om this ocassion when i logged a service call i eas sent emails from a service agent n the issue was resolved. The second month i logged calls for the same incorrect bill and the agent told me they loaded the incorrect package and that is why they overcharging me, i refered him to my recorded call that they have on the system when i authorised the deal and also the screenshots and previous srv number I logged then he logged 2 srv numbers to rectify the package n credit me. I called in 2 weeks later to confirm and another lady told me it is sorted out but then a week later i got debited R1480 for fibre which is ridiculous. Ive spoken to agents 3 times already n received srv numbers but everytime they say they will sort it out n i have to wait for billing department to contact me back but its way over 21 working days but they have no issue in debiting and taking my money off my account incorrectly This is absolutely unacceptable and if i dont receive any feedback i will go to the ombudsman or go the legal route as i am now furious with vodacom and their lack of feedback or acknowledgement of their fault