AWAITING ASSISTANCE TO REFUND OR RESOLVE

I called yesterday as there was a glitch on the Cell C app. I was busy buying the 100G data special package valid for 180 days - 50G day - 50 G night. The app kept freezing and it resulted in me eventually authorizing 1 x purchase on my banking app for R549 - with only one confirmation of success from the Cell C app for my daughter's number - we are on pay as you go. However when I checked my bank account there was an extra 2 x R549 amounts debited and my daughter had 300G. I called 135 and was transffered to 3 different dept. I was suppose to get a case number SMS'd to me and I'm still waiting. This is unacceptable as I was advice to do data share but how?? It only allows for 1G and the consultants didn't even know this. Urgently call me to get a resolution for my refund for 2 x R549 taken off without authorizing or extending the data for a longer period and transferring 100G to me.