The tax refund form of Phuket Airport was stamped. The tour guide said to punch in the card for me, but I didn't. I think the internet says that you can get a direct tax refund at Phuket Airport.

If the tax refund form has been stamped with the tax refund stamp, there is a tax refund window on the right hand side after you go through the customs to check your passport and tap the departure stamp on your passport to enter the waiting hall. If you spend more than 2000 baht, you can get a 7% tax refund, but you have to deduct the handling fee of 100 baht. Direct cash transactions. This is a national act of Thai customs, and it is not said that the tour guide will give you the tax refund on the card. It is recommended to keep the stamped tax refund form and negotiate with the travel agency where you signed up for the tour.