How Can I Extend My Non-B Visa in Thailand?

So i got some good news for some of you with a non b visa. Today i got a 1 month extension on my non b visa in samui immigration office. I have a non b multiple entry visa which expires in July but my borderbounce was due on 1 april. The only thing i brought to the immigration was my pasport, a letter from my Belgian Embassy (i printed out the letter in color that was send to me over email) and 3 pasport pictures. They gave me 2 x 2 weeks extension meaning on the 16th i have to go back to the office only showing my pasport and get another 2 weeks. Price was 2000 baht. Unfortunately it seems some countries still not give the letter which is necessarry to get the extension the lady behind the counter told me. I hope those countries get their asses moving and provide you that letter 🙏 Any questions let me know.. ✌