Poor customer service

On Sunday the 14th I purchased two Takelot vouchers, when they had not yet arrived by Tuesday I contacted the helpdesk. I was helped by "Temba" who suggested that I should email ********** and forward them the invoice and ask that the vouchers be released, and that they would be released in a matter of hours. I requested a reference number but was told that Momentum didn't work that way. Tuesday came and went - no vouchers, I tried again on Wednesday and received a call from Divan Strydom who apologized and assured me that the vouchers would be released shortly and he would phone me back - still hasn't, still no vouchers. Called again Wednesday evening left a message and my contact details for Mr. Strydom - no response. Called again Thursday... much of the same "no you can't speak to Mr. Strydom..." Phoned again this morning spoke to Dharmisha who was very helpful, but once again Mr. Strydom was unavailable as were all the other service center managers. It is really frustrating that Momentum doesn't seem to have a mechanism for escalating an enquiry. I can't fault or blame the helpdesk staff who were always very courteous; the unresponsiveness of the managers though seems to be a problem. I understand from the helpdesk operators that there was an IT error resulting in the vouchers not being processed, but received no email SMS or other form of communication explaining this or giving any timeframe for resolution - it necessitated me contacting the helpdesk again and again. Surely after a client has contacted the helpdesk more than once for a specific problem Momentum would ensure an open line of communication and keep the client updated as to the status of their enquiry? All in all, it has left me as an unhappy and frustrated client.