if you open the website, in the middle is a box with the text "Am I eligible to apply on-line" click on that, fill in the questions and you get the answers,
The rule is crystal clear. a minimum of 12 months foreign deposits into a Thai Bank account on your name of minimum 65.000 Thb.
That you have more than the minimum is good, but does not get you of the hook for having 11 months. BUT you can go to your local Immigration office and ask the officer if he accept this one time mistake.
Time to close, The immigration office in Had Yai, very close to an open border with Malaysia offers a good service as alternative for a stamp due the fact that you are unable to travel 20km to a border but willing to travel 2000 km to see the mountains in Chang Mai.
There are different views on the service from Immigration and be aware the Extension of Stay based on being unable to travel is an option made for foreigners stuck in Thailand because they can not travel back their home country. It is not a right you have as foreigener to stay in Thailand based on this declining pandamic.