I want my data

Vodacom is a big *****. I bought myself 10gb with 100 mins, 250mb social data. All my data is valid till the 25 Aug. I checked my data and it was 4.27gb and over 10gb for night owl that I do not know where it came from since it's supposed to be 5gb seeing that I can't even use the data due to poor network. I couldn't use the internet and I thought it's the network as usual since I can go hours not being able to use my phone. This morning I checked my data and it shows everything expires on the 25th still but my 4.27gb expired yesterday which was the 9th August and yet it's also for 30days. A combo bundle and they cheated me of my data by changing the expiry date. It's a pity I am not able to attach the screenshot. I WANT my data. I bought that data I didn't even touch your R150 advance so GIVE ME BACK MY DATA