Worst experience ever

I redeemed a voucher of an amount r140. So when I went to my money market voucher says that the voucher account is frozen. I called 4 times in the morning they said they dont see anything wrong. The account is active someone guided me to get to an option to get a token number. I get to bree shoprite I tried to pay the token is not working. The money market lady told me that she can use the store phone I must call using my phone I did that the guy I spoke with couldn't assist me. I asked to speak to a manager he refused said he will call me back he didn't. I called for the 6 time somelady told me that I must wait she is getting her supervisor on call she never did. I simply told that I want a way forward how do I reverse the voucher and what is plan b. No one was able answer. Then the shoprite staff at bree they set and watched me as if am crazy. They told me it is not there business.