Wifi data theft

Last night I went to bed knowing I had data on my Vodacom wifi account and this morning I woke up to the shock of my life, all my wifi data was gone, but its alright Vodacom will dispute it once more, thi sis for phone number ********** 120 (wifi account), the nice thing is that yesterday I hardly even used my account as I was busy finishing data off my other wifi account (phone number ending with a 6552) so it is impossible, that my data is gone, its a shame that we still take this from Vodacom, and the agents there are rude, last time I called to enquire about my missing data I was made to feel as if I am looking for free data or something, teach your staff to talk to people and also fix your data issues