Vodacom being dishonest

<p>I have been on vodacom for plenty of years with the same mobile number, so has my family. Recently they are just robbing us for our airtime, it happened to my mother twice now me, this is so sickening yet when we use thousands of airtime they will never reward us with anything good. I have then been using the just for u promotion the R79 for GB , they stopped giving me that, the the 180 minutes for R15, this is so freaked frustrating .where is our airtime vanishing to? I will like taking this further as well as changing my network !!!</p>