Cheated customer

Hello Peter. It seems like the only time I complain is always about Vodacom. Instead of fixing this continuous problem they opt to reimburse you. Ok so what happened was that I bought a new phone but still use my old numbers. Now lately data flies like it's crazy so I quit buying 250mb to opting to get everyday promotional data instead. Now I buy the 60mb daily data everyday and the weird thing started happening last week. During 23h00 my remaining airtime disappears when it says 4mb remaining yet I still have data. I figured it's an error from their side. I called customer careline and they told me about updates and data restriction and I have done all that already. Nothing is autoupdate in my phone. The days went by and still that continued. What u don't understand is why does it disappears while I have data?if I was watching a video or downloading something that requires money I would understand but nothing like that. I've been using my number and data for years now. I for one should know if am being careless. Last night it did it again and I just about had it. I need them to stop *****ing from me and be as loyal as I am to them. I buy airtime everyday for me and my niece. Pay