I've often herd reception problems are the main issues with Vodafail once your out in regional/country areas.
The Minister is on Vodafail while I'm on Teslstra (work phone). We've seen hers have no/poor reception a lot more than mine when out in the country.
S.A has lots of mobile black spots under 2-3 hours from CBD. There's whole regional towns where I don't have a strong enough reception to pick up the things in the game I play.
This is relation to Vodafail Mr Bluu.
The Minister has a had a few issues along the way when when getting a phone for little Miss Minister. Issues were related to getting a SIM only plan and using that in the Ministers previous contracted device with Vodafail. I think there was also some problems when she changed from Virgin to Vodafail initially 6-7 years ago. They were helpful in sorting them out but I think it took a few goes.