What should I check on my re-entry stamp for a Non O extension in Thailand?

When entering Thailand with a Non-O visa extension and a re-entry permit, you should ensure the immigration officer stamps your passport correctly. Key points to check on your stamp include: 1) The visa class should indicate 'RE' (for re-entry), not other classifications such as NON-B or NON-ED. 2) The admission date should reflect the date of your entry (today's date). 3) The stamp should show the expiration date for your extension, which is 23 August 2024 in your case. Some details might be handwritten, so double-check for accuracy.