Suddenly the My Optus app has stop working on my Androud phone. It acceoted my pin and then said it unexpectedly stopoed and clised down. Reinstalled app and got to first menu screen and same error occurred... was working fine Any news on this?
have you update your android os? Android mobile phones using Android 5.0 or later.
try clearing the cache/data from the app and try again
go to settings > Apps > My Optus > Storage
see if that fixes your issue.