Spar and Standard bank *****s

I've sent money to someone, using Spar cash send but the person never received the money. I went to the ATM myself but when I tried to withdraw the money, I got a notification that the voucher was invalid. I went to the cashiers and they checked and told me that the money is there but they can't help me because i need to phone. How, I don't know because i did not create the voucher myself. I went back to the branch, and they told me to phone the number, but my airtime just kept running out. I've spent more than R80 on airtime to try and call without any success, I tried the self-help since yesterday, but they just said that the new pin has been sent to the sender phone number but up to not I haven't received anything. I think Spar and Standard bank are in cahoots and swindling people because as it is, not one of them can tell me what to do next. This is not the first issue I had with Standard bank and I believe this will not be the last.