Vodacom worse feedback

Vodacom is the worse service provider when it comes to feedback and incorrect billing. Someone phoned me in October and offered more data and minutes on 5 numbers without telling me that my monthly amount would be higher. After phoning 4 times to get this corrected and being promised that someone would get back to me, I now have to pay almost R4000 more this month for 5 of my phone contracts. Everyone promises to send a mail to the back office with no feedback. If I send my debit order back the phones will be dead…..really a catch 22 and a freakin ripoff 🤬 I have been with them since 1997, think it’s time to change