Capitec is Trash.

I mistakenly bought an Electricity Voucher via Capitec, I was actually trying to buy an OTT unfortunately I couldn’t rectify my mistake and I am quite sure I am not the first person to make this mistake. If such mistakes can’t be rectified why is Capitec offering this service? Now I am stuck with a useless electricity Voucher that I have no use for. Capitec is doing this on purpose just to pocket money. And the service I received trying to see if this transaction can be reversed was quite bad. Capitec Vouchers option is trash.