PAID FOR 3GIG AND NO DATA!!!

On the 18/19th August 2015 we ran out of data (3Gig) on our computer (which almost NEVER happens). We have a monthly Top-Up with Vodacom for 3Gig which lasts more than a month. On the 19th August 2015 (afternoon) we bought another 3Gig data. The next morning we sent out a few e-mails (MAYBE 10). Just after lunch the same day (20th August 2015) we were out of data again!!! (3GIG gone in less than 24 hours!!!!!) We lodged a complaint with Vodacare (Ref.no.A1-X8MV-QSS1M5) (14h27 on 20.8.2015). They informed us that they would get back to us within 2 working days. Eventually on Monday 24th August 2015 I again contacted Vodacare and they informed me that we downloaded WINDOWS 10!!! I was shocked because I DID NOT DOWNLOAD WINDOWS 10!!!! As far as Vodacom was concerned the matter was solved. I DID NOT EVEN HAVE WINDOWS 10 ON MY COMPUTER!!! How on earth is this possible!!! <br> VERY SHOCKED!!