Disappearing data and airtime

The issue of disappearing data and airtime with Vodacom is really becoming a nuisance. On Saturday I recharged with a 100MB within 20minutes it was depleted while i was only on Whatsapp. I bought 2x 500MB with my talking points and that 1 Gig was depleted in an hour while still only using whatsapp, No Facebook and no Instagram. My boyfriend sent me R275 worth of airtime, I converted some of that to 1Gig, in an hour that 1 Gig was depleted together with the remaining airtime of about R130.

What's really annoying is that when I called Vodacom to address the issue the quickly asked what phone am I using and as soon as I told them I'm using an iPhone they hid behind the issue of open Background App Refresh in my settings, which was not even the case, all my background app refresh were off. What makes it so evident that the issue is with vodacom is that I have a second iPhone that I am using on a Telkom mobile network, and I have no issues of disappearing data on that phone and the settings on this telkom mobile phone are the same as those on the Vodacom network.

I am still waiting for my data and airtime to be reimbursed, as this is totally unacceptable and has been going on for too long now.