My airtime and data disappearing

<p>For the past few months now I have noticed that my airtime on my cellphone has just been disappearing. So today I decided to test what could possibly be going on with my airtime. </p> <p> </p> <p>This morning, I bought R110 airtime through my banks USSD. I then decided to buy data through the "JustforYou" data. I had R98 left once I had finished buying the data and had 40MB worth of data. I then proceeded to use the data of social media (but carefully checking whether my data to make sure that once depleted, I switch it off on my phone. </p> <p> </p> <p>What I saw was quite surprising when I did a balance check for the third time. My Airtime was also being used as data, even though I still had about 10MB of data left.</p> <p> </p> <p>I have been discussing this with my husband for months and he too has mention that his Vodacom (as he has a Cell C phone too) has been disappearing at a faster rate than before.</p> <p> </p> <p>This is not the first time that I am raising a concern with regards to data with Vodacom. I have tried numerous times in the past to call the Customer Line to try and get explanation of have my issues resolved but I always get the same excuse: "Mam, my system has not updated your usage yet." That line really irritates me!!!</p> <p> </p> <p>So I pose a question to you; please could you explain as to why my cellphone will use my airtime, instead of data that is available? Your response will be highly appreciated.</p>