Angry with tymebank

Once again I am so disappointed with these bank, to think I gave it a second chance from my last experience yet again they disappoint me. Yesterday I bought electricity for R200 only for the bank to deduct my money but not give me any units whatsoever, no sms came through with units even on the app it doesn't show any updates of electricity bought except for the information on the statement to show that 200 was indeed deducted and the reference given is Offbcc. What I don't understand is how come I was able to buy airtime right after and received it but not my electricity units? To make matters worse, I called several times on the service line and there was no answer, it just keeps saying it's unavailable. How can a remote bank that says it has 24hr helpline service not be able to pick up a call from clients? What are we supposed to do with a bank that holds our money but we keep struggling with it? Even today till now, no phone calls are going through and still no correction regarding my electricity units. What the hell is going on with tymebank? I think it's clear now for me to leave it. I am really hurt about this experience. Can they just fix this problem and give me back my money coz I had to make other arrangements to buy that electricity again.i am ****ed with tyme bank as of now.