Atrocious service from Vodacom

The service from Vodacom is pathetic. I completed my weekly challenge on the Vodapay app to receive a reward of 30 vodabucks, this was for the week ending 21 July, however to date I have not received my Vodabucks. I chatted to an agent last week Friday, a ticket was logged, today I received an SMS that the ticket has been closed, however nobody from Vodacom has bothered to contact me with feedback, and I have still not received my 30 vodabucks for last week. I don't understand why we have to beg and fight for assistance. I want someone senior to sort out this matter and respond to me by email because I cannot take calls during work hours.