Could try manual load of $1 to account as suggested above. Or try the lost/stolen trick again later on.
Otherwise, you might be stuck waiting for moderators. The wait times have been about 2-3 days unfortunately....
Did you select to change plans immediatly or when your next cycle starts?
You could try turning your phone off, enter "reset" mode (but don't reset it) select "clear cache" and reboot your phone.