Vodacom - Vodadom

Vodacom service is the worst. I have recently upgraded 1 contract and migrated the other. They messed both up, last communication I received from then was on 1 March 2018 saying I will receive feedback regarding the issue within - 5-7 days it is now 42 days?!?! The upgraded device also had some LCD issues and when I reported it they said sorry its after 14 days so I will have to take it in for repairs and pay for it. I am now told the phone was dropped, and I know for a fact it was not??? And then there is my monthly account....what a mess, double charges on numbers and if you try speak to someone you get referred from pillar to post. What to do???