If you already do have a thai bank acct get your 800k in and apply at immigration office near you....u need to have more than 15days on your current stamp to apply for the initial 90days nonO
Simplest and straight forward transfer is Swift from EU bank to thai bank just need to verify your transfer is legit to your EU bank wise have daily limits sending to other parties except yourself
They will not declined base on border runs if u qualify the conditions of nonO UNLESS you have history of overstay or being banned for a certain period
You can't work in thailand even holding a nonO (marriage) you still need to apply for a work permit....looks like you had been taken for a ride when u make the mistake of starting work without a work permit you can't do anything even if they don't pay u....costly mistake