Vodacom cheating us of our airtime

<p>I'm so sick and tired of vodacom and thier stuff who don't know what they are doing there. My problem started last month October 2016. Everytime I buy data bundles and when I try connecting to the Internet or checking my messages they take my airtime instead for taking from the data that I bought, and I have been calling vodacom over and over about this and the callcenter agents always tell me bull****. I'm very angry about this cause I've reported this on many occasions and nothing as been done to date. </p>