ONCE AGAIN VODACOM DISAPPOINT! Incorrect billing! Contract I never approved!

I am SO OVER VODACOM! They are charging me for items I did not approve! An upgrade was offered to me in October, I requested it to be cancelled the following day, it supposedly was? I gave the whole story about said manipulation of upgrade etc and my story was received with shock. So we canceled the upgrade IN OCTOBER and proceeded with a new upgrade which I was satisfied with (besides it taking forever in a day to sort out!) Now I notice my original DATA has disappeared and I am being charged for a bundle I KNOW NOTHING ABOUT! Charges I know absolutely nothing about and my bill is much higher despite my handset being paid off!! What’s more is they keep sending emails with no attachments! They said they emailed my current bill yet the email arrives and no attachment! They did the same with upgrade which I specifically asked for with details of upgrade!! Bundles and line rentals being charged for that were not charged prior! Since that phone call I received in October this has been a nightmare. I am extremely annoyed, upset and so very angry with Vodacom! How do I trust you now with my future debit orders? When you are charging me for items I know nothing about! The bill should be less as the current handset is paid for! I am so sick of this, sick and tired of having to fight with you VODACOM!! My current bill sits at over R 1400 when it in actual fact should be under 1k. Then my data bundle I originally had disappeared and I notice I am being CHARGED for 15 gb?? Where and when did I approve that! Besides the fact the app reflects only a 5GB data bundle which I also know nothing about. Let’s not forget the once off 20gb bundle loaded for the “upgrade” I cancelled which I kept saying should only be relevant when the actual upgrade I APPROVED HAPPENS, which is supposed to be 1 December! I have heard too many horror stories from other Vodacom customers that have been charged for items they didn’t purchase or know about! Including my own family!! You’ve done this to me before over the 27 year period I have been a VODACOM customer! How do you expect me now to trust you? And as for the young lady whom I did the final upgrade with, who said I could email her directly, I have yet to hear back from her! Vodacom you need to do better! FIX THIS ISSUE!