Overcharged twice with no credit!

Absolutely **** service as usual from Vodacom.

My contract was suppose to be upgraded on 1 April, of which did not happen so I was overcharged on my previous contract.

My contract upgrade only got sorted out Beginning of this month. Vodacom said they will credit me for previous months charge, but never happen.

Now I got charged again for this month.

What is going on? Vodacom owes we 2 credits

Vodacom shop secunda was busy with my contract, but their service is just ****!

SORT THIS OUT!