Whatsapp Ticket Issues

I bought a Whatsapp ticket from Vodacom and have read the terms and conditions but everyday between 18:00 and 22:00, it's not connecting at all. Nothing in the Ts&Cs stipulates that it will not be usable during this time frame but it seems to be deliberate because both my phone and my wife's do not connect during this time.

Also, nothing in the terms and conditions stipulates that it will not work unless you have the application opened and that is exactly what is happening because I get no Whatsapp message when my phone is locked or the screen is off and as soon as I open the App, the messages flood in.

This is pathetic of Vodacom and after speaking to 3 different operators that all have a different "reason" for why this is happening, it's clear to me that they are all lying and don't know what they're doing.