PAYING FOR AIRTIME AND NOT RECEIVING IT AS PROMISED - FOR 10 years PLUS

I have been paying for airtime every single month of R25 for about 10 years if not more and i was suppose to receive R50 airtime every month in return. However not once ever have i received airtime once. YES NEVER EVER HAVE I EVER RECEIVED AIRTIME. You clearly robbing me. Its my own fault for not checking but still, this is not business practice. I called to query this and want a refund of all my monies paid and this subscription to be cancelled. All i get is an sms to say subscription is cancelled, no feedback in regards to a refund. Reference number for this is EDCP - ***. This is a serous matter and would expect you to contact me. If i dont receive feedback this week im going to take this further with the ombud/consumer protection.