Bad Service from TEAM LEADER Samekaleng More

I bought x2 R29 data vouchers on 29/03/2018 and both said invalid numbers. I called the call centre and spoke to a team leader Samekaleng More who advise I need to go back to the shop after I told her shop told me to call them. I request her manager call me but to date no one called me he/she was going to call me after 8 the same day. I called again today and person I spoke to said she'll email Samekaleng..Your service sucks. The one card serial number is ********** 86298.. The reference nubmer for the call ********** ********** 65