Singapore domestic is recognized by officers for 100% - I have it and I had several checks before I converted them to local DL (it gaves a lot benefits when you stay here for long term) without any issues besides officers’ confusion with my very Russian name and look🤣
Depends what country. Thailand has special agreement with Singapore, Indonesia, Malaysia, Brunei and Philippines for recognizing each others domestic driving licenses, so for traffic police checking would be ok. But some insurance companies could require local driving license if you stay here on residential visa longer than 3 months.
sorry I also saw 1 Nov😅 anyway it’s only Phuket airport immigration officer could fix. Immigration at town could fix only if airport officer put correct in computer data base and not correct only the stamp itself. But most likely airport officer put the same to computer as well. So could be easier to go directly to airport