Successful transaction but no voucher pin received for prepaid electricity and no support to deal with problem

I bought electricity this evening, even in my history it shows that the electricity was purchased successfully, but i have received no voucher pin even though the money went off my account. After 2 extremely long calls i was running out of electricity and had to go physically buy electricity from the garage. My conclusion trying to use Standard banks online prepaid electricity service. I Lost R650 electricity as i have not received my voucher pin, yet a successful transaction (which is not true), and I'm left with only 12 kwh which will run within 24 hours. What a complete waste of time (fail) trying to use standards banks online prepaid service. Your service does not offer convenience.