MegaU Benefits disappointing once again

Once again, I'm experiencing problems with the MegaU benefits for my children. These vouchers cannot be redeemed, both the data & the food vouchers. I wrote an email to Daphne le Grange who assisted me last month, she didn't respond, I called her & she said she'll escalate my query to the Benefits department who will investigate & come back to me, which never happened. I sent her a follow up email & no response again. I'm on Hellopeter again to report this problem. This is just a waste of my time, I opened these MegaU accounts because of the benefits they offer but it's now frustrating that I must experience this with the vouchers, it's disappointing Absa, you sold me lies these vouchers are useless