Vodacom You have ****** my data!

Today, 15 Feb 2020, I have bought 2gig of data just about 30 mins ago. The data disappeared immediately I logged on using my phone as a model. And it always disappeared together with the 205mb that was already in my phone! I called customer care and they told me it is content, I said I have no content. He checked and agreed with me. Then he said it must be your laptop since you are using your phone as a modem. I refused to believe him because i have used my phone before as a modem and my data has never disappeared! He insisted that my laptop was using up my data in the background. I refused because my phone does not auto-download unless on wi-fi. I was so angry because i felt powerless. After his call I decided to give him benefit of the doubt. I bought again another 2 gig. I connected my laptop and until now I still have my 2 gig. It is the same data I am writing this complaint on! So what was the dude saying. Checking my data now before posting, I am 1,87g, which is normal. No ways, Vodacom has ****** my data, I am convinced!