Don't use Vodacom!!!!

I did an upgrade on the 27th December 2018 form a top-up 2 for one contract to two open line contracts. The new package stared the 1st of January, so at the end of January I was supposed to be billed for the Month of January (R200). However, I was still charged for my old package (R420). I contacted the Vodacom customer care, carefully explained what happened. After 2 hours of trying to explain this problem, someone finally lodged a complaint. Thereafter I received an SMS stating the issue is resolved....Now I suddenly owe them R500...they owe me money since they overcharged me with R220 for the new contract. This is insane...afterward I have tried to contact vodacom various times...being thrown from on department to the next. Customer care only say, the issue has been resolved....This is really bad service and I can't wait for my contract to finish. I would not suggest Vodacom to anyone and will make sure everyone I speak to will now about this terrible service. Promising phone on booklets and when you get there...it out of stock...However, I have seen the stock with my own eyes. Then promising you pay only R99 per month....then you get billed R115,,,,for the most ridiculous services.