FYI for anyone coming in to close out their under consideration stamps in Phuket you should check the immigration website first. On the left hand side there is a link to “Check visa application” then you type in the 8 digit number that was stamped in with your under consideration stamp. Many of them are still being processed even if you were told to come back today and they can’t give you the 2nd stamp until your application has been approved.
TLDR : Answer Summary
When closing out under consideration stamps in Phuket, it's important to check the immigration website first for your visa application status. You can use the 'Check visa application' link on the left side of the site and enter the 8-digit number from your stamp. Note that many applications may still be processing, so you might not receive your 2nd stamp immediately even if advised to return.