Money deducted but airtime never loaded

I bought airtime on 1 January 2019 around 1:00 am via the mobile bank and the airtime I bought was deducted from my account but it was never loaded into my phone. I then decided to wait thinking it will be loaded later on but it was still not there. I then tried to buy airtime so that I’ll can call them, but I had exceeded my limit already so I had to borrow airtime from MTN, I then called them and I spoke to a robbot, the call was never picked up. Until my airtime was finished! I had to ask someone to buy me airtime, MTN took the airtime and I had to borrow from MTN again. I tried calling again, I had to call several times before an agent picked up. The airtime I bought and received a message that it was deducted was R200 ( bought R100 twice) and they were both deducted. I then tried to buy another R12 to see it will be loaded but I kept getting and error, I tried two times, but after entering my pin it would give me an error so I’m not if the R12s were also deducted. The call agent said it shows that 4 airtime transactions were made and that I should wait 24hours and the airtime will appear, but still the airtime is not there! Now I’m required to call them again with airtime which I don’t have! I just want them to load my airtime or my money back. I don’t have airtime to wait for their call agent who never pick up.