Get online support
Hi, join the club... I have been waiting for weeks. I only have incoming calls & SMS NO outgoing. Good luck!
TPG & customers - FYI. Thursday 11 Jan 2018
I'm have hugh problems with international roaming with TPG after years of trouble free roaming with Telstra.
With TPG, in France there are 4 providers shown on my iPhone 6. When I turn OFF "Automactic" service proveres. Here is the result for each:
Free: - "NO SERVICE"
ORANGE: - "NO SERVICE"
SFR:- incoming calls and SMS work OK. Outgong call and SMS - FAIL..!
F-Bouygues Telemon - "NO SERVICE"
Sadly, you will have no success, had exactly the same issues as you in Vietnam