I got approved with a sponsorship letter from my stepdad! His account! Not mine - but i had to show a decent amount of money (not further defined) on my account as well as 6 months of proof of income (me) and proof of relationship to the sponsor!
We declared quite clearly that in the very unlikely event of me running out of money he would step in for all the necessary expenses!
thanks mate. I already submitted invitation letter, receipt (proof of payment), daily schedule of the camp… but e-Visa-Vienna is asking straight for the thai schools establishment document…