I'm wanting to apply to phuket test and go. But only I only staying 4 nights in Thailand. Can I apply and get approval for only 1 PCR test and with only 4 nights at my SHA plus airbnb ?

I'm a vaccinated foreigner that's been on Koh Samui for almost 14 days. I had negative test results at both the airport when I arrived and on day five when I was staying at the resort during the first week. After day 14, does anyone know if am I able to go to Koh Pangan without being tested again or showing proof of the first two negative test results in Samui? And I never received proof of the negative test results but I am currently asking the resort for copies of them just in case. TIA for any info.