Poor service from African Bank

I redeemed some points over a week ago and did not receive the voucher that was supposed to be emailed to me. After a few days I emailed, and a consultant phoned to verify my details etc and I was told that I would have it emailed within a day or two. I received an sms, ref number- *** stating it was resolved. Nothing happened. I emailed again a few days later and was told to go to a branch. I went to the branch in kenilworth, cape town and the consultant was not very helpful. She was more interested in her phone messaging her whoever. She put me through to the call centre and again I was promised that I would have the voucher emailed. Very bad service. Disappointed.