What should I expect when applying for my first retirement extension in Thailand from Jomtien immigration?

We went to Jomtien immigration yesterday to get our first retirement extension. We waited outside in line for about 30 minutes, then got to counter 8. They did not want the tm30, first time for that in Jomtien, but they did want the rental agreement and a copy of the residence update attached to our passports. After a few minutes of looking at the copies and our passports, she had us sign a stm2, took our money, gave us claim checks and told us to come back today after 2 pm. We returned and they gave us our newly stamped passports. Turns out it's one year from the date of application, not from the end of the last extension. Lost a few weeks there. So we managed to get our first retirement extension in Jomtien even though the non-o visa was issued in Bangkok, all because we got a covid extension that didn't follow that rule.