********* and dishonest employees

During the lockdown on the 21/04/2020, I bought my 10 years old airtime. As she tried redeeming the voucher she kept getting a message stating the voucher is invalid. Called the telkom call centre for assistance, the Africa lady who assisted me asked for a serial no which I then gave she said the voucher was valid and ask if me to give her the voucher no to enter the pin for us as she is able to do from her side. We waited an hour later no airtime , I called the call centre again and spoke to Mikayla who told me the voucher has been used after I had called the first time and promise to escalate the matter. It has been three weeks a d i am still waiting. I am appalled by such dishonest behaviour, no ethics whatsoever.