I just used the TDAC time, had QR ready but was never asked. Just showed the lady my re-entry permit. I put the number on my extension in the visa section. Maybe incorrect to do that
In a way airport staff on arrival were not doing much to guide people
Saw two couples of Chinese sent away from my line , to the Visa on Arrival line, they were clueless. Other tourist looking people from were sent to the TDAC kiosks, obviously they had not done it.