Vodacom is *****ing our data

I'm sure most of you guys feel the same.... Data is missing from my home internet... Vodacom is taking it away... I had this same experience last month n logged a complaint but vodacom has not called me back... My average usage for Netflix is about 2 gb per day... To my surprise last month I used 300gbs on Netflix and was told by the agent maybe Netflix updated so I left it... This month between the 2nd and 3rd whilst nobody used Netflix at due to us been on hoilday vodacom has taken away over 70gb data usage for Netflix... Vodacom you are robbing your customers... My daily usage is about 1 to 2gbs so why take this data.... I'm tired of been ****** by you guys.