I have not received my airtime

I bought Cellc (R25) airtime using Standard Bank's cellphone banking on the 20th of September and until now I have not received my voucher.I have called cellc's customer care and have been promised to get my airtime within 30 mins but still nothing came, I called again and was told definately on the 21st at night i will get it but i woke up this morning with still no airtime. My bank statement shows that the payment went through. Cellc doesnt have the courtesy to inform their clients that they are having technical problems, all they care about is sending smss to promote or sell their new products. As soon as i get my airtime I am moving to another service provider.