Covid extension and tourist visa.
Good evening to all
Actually I've my normal 30 days tourist visa extension available until the 5th March, I would like to stay in Thailand until the 5th April or a little bit more.
What is the best moment to apply for covid extension, should I wait 1 week before the end of my visa or can I already apply now ?
If the extension is denied, does it cancel the visa and oblige to leave the country in a week or the visa is still available until its end ?