Vodacom absolute *******

I have a android phone on smart s package with vodacom. They have billed me around R900 for extra data usage. No explanation, no warning no nothing. Vodacom is supposed to send an sms with a warning saying your data bundles are expires and i will be charged out of bundle rates. I never got that warning. I bought a data bundle while I had 4mbs of data. Not once did I see that I had been out of data. So vodacom tricks it's clients into believing that we will get a warning sms to buy a data bundle but they don't. I have asked for a detailed billing of my December account. As I do not believe I used R900 worth of data plus 2.2 gigs of data and uncapped wifi at home. And once you complain about the exorbitant amount they Over charge u they tell you to put a cap on your account which most people do. But the cap is not guaranteed cause they stuff u over with that aswell and u can go over your cap and get hit with a bill that most people cannot afford. Nothing at vodacom is guaranteed except that they will trick you and legally ***** your money. With false **** and ******* promises.