What are the requirements and options for extending my stay in Thailand based on marriage with a Thai national?

I just want to share my experience at Hat Yai immigration yesterday. I was unable to apply for a 12 month extension of stay based on being married to a Thai national using the 12 monthly deposits in to a Thai bank account because there was no deposit in May 2020. My income was transferred late by the overseas bank in May 2020. I receive monthly deposits on the 28th of each month but the May deposit did not arrive till 2nd June. Although there were 11 other deposits on the 28th of each month, and a deposit on June 2 together with the normal deposit on June 28, they would not accept it. They suggested I apply for the unable to travel due to covid 60 day extension and they gave me an under consideration stamp until the 29th January. They also indicated to my wife that this extension type will be available after the 29th of January and suggested I stay on this extension until May 2020 is no longer part of my 12 month history.