Vodacom don't Treat Customers Fairly

Two months in a row Vodacom has deducted exorbitant amounts from my account without giving me any warning. i only receive my statements after they deduct the money from my account by debit order. Last month they deducted R 18,000 and this month R 8,000 when my account is normally in the region of R 2,500. What would happen if I did not have this type of money in my account. So last month I could not pay some of my other expenses due to this unfair deduction without any notification.<br> <br> When I made an enquiry they said it was high data usage. I never received any warning sms to say that I am out of my data bundle. I also requested that they rectify and now I have another deduction. This is not in line with treating customers fairly. When i phoned the response was sorry for you but this is your problem!! so now I am ALMOST R 25,000 out of pocket with no warning and i don't even know who to phone to assist me!!