PEP STORE. THE WORKSHOP

I purchased two Cell c what'sapp datas for R30 at PEP stores at the workshop. The vouchers are not loading. When I call cell c customer support they advised that there is a technical issue with Cell vouchers and the stores are aware of the issue. How can they continue to sell vouchers to customers without advising them that there is an issue. I just wasted R60 on vouchers that I cannot return due to the fact that I live far. I'm very disappointed in PEP services.