Tourist visa cancelled due to incorrect address, will this be a problem going visa exempt?

I know that it is all down to the immigration officer but I would like to get this groups opinion. My partner is Japanese and currently in Japan. No prior visa runs. She will fly with me (LTR visa holder) to Thailand for 45 days holidays on Tuesday. We are not yet married.

With all the news on reducing to 30 days on visa exempt, we decided to play safe and apply for a single entry tourist visa to ensure she gets 60 days. Now turns out she hasn't updated her Japanese driving licence and id yet after moving recently and bank statement address/visa application address do not match driving licence address.

Embassy just requested driving licence from her and I am sure the application will be cancelled once submitted. I hope just cancelled, not declined.

Do people in this group think (I know, nothing is certain) that she will get issues then flying just visa exempt? We will print out return flights, hotels, THB 20k cash in the pocket.

I will be with her. Too late to apply again and the ticket is non refundable business class, would be shame to lose this.