Pathetic service

On the 10th of November I purchased a Capitec voucher over the weekend I wanted to use it to purchase airtime. Put the voucher number in "Invalid Pin" tried 3 times. I ended up calling in a consultant helped me escalated my problem in an hour I got a reply the voucher is active. I tried again and still nothing. Phoned in again and ended up wasting R40 airtime because my call got cut. No return call. I ended up emailing and got a reply saying check my service provider. Still that voucher is invalid. I even tried it on someone else phone. I either want a new voucher or my money back which I know is impossible. It's on R21 but still that's a loaf of bread. I'm tired of phoning your call Centre and making to hold on for so long. That's pathetic service. I feel like closing my account with you guys.