No feed back

Im a costumer of absa bank and very unhappy with their service i received.I have a student cheque account which includes benefits which is 75mb of data free movie ticket 50%discount on a bus ticket and R20 KFC voucher.I redeemed my Free movie ticket in mid February and my Free KFC voucher on the 29th of February..I phoned and asked why is the system send me messages that states it has problems and Jabu the call centre agent told me they have technical difficulties and i shall receive my benefits in the next 48 hours which i never recieve any voucher pins.Last week i phoned again and the call centre agaent Jabu answered again and gave me the same excuss of their system that has technical difficulties.Today i redeemed my KFC voucher again and i didn't receive my voucher pin again.Im highly upset because why should i R21 every month bit i can't even make use of my benefits and i hate that fact that they must lie to you as a costumer absa call centre agents has a lack of honesty and i feel discouraged and i if do not receive any feedback on my complaint i will terminate my account with absa