No data received but payment was taken, bad service!

I am very disappointed as I have made a purchase for a LTE prepaid data, homeflexi and I was charged from my bank and have not received my data. I paid 199.99 for 100 GIGS and using the cellc app via eft payment. The payment was made to the Payfast instant payment and I was charged by them but have not received an invoice or confirmation. Now I have no data and my money is gone without any data, that's ridiculous to charge customers for data but you don't end up getting any? I want my data or my money back!!!!!