@Armin ****
there is NO receipt, you didn't DO a 90 day report from that paper yet, that's given when you START a new 90 day reporting cycle (change extension reasons, visas, etc) ๐ฎ
If you haven't left the country since they put that paper IN your passport on Feb 9th 2023 then your FIRST 90 day report is due on the 9th of May. ๐
AFTER you file that 90 day report (which people pointed out you can do from 2 weeks before down until 1 week after in person OR from 2 weeks before down until the due date online) and get that receipt of having done a 90 day report
THEN
you can apply for a certificate of residence.
AND
Seeing as you have an elite visa I would say GO To Chaengwattana Section B <- and apply for the 90 day report (that's where elite visa holders do 90 day reports in person) and then as soon as you get that 90 day report receipt apply for a certificate of residence for 200 baht (which is coincidentally also at Section B) ๐ and they'll give you an EMS receipt and mail the COR to you in about 5 days.
That's how the process is gonna work out for you. The soonest you can go file that first 90 day report will be April 25th (2 weeks to the day before the report is due)