Are you asking for a Thai citizenship and you don’t wanna pay a fee? What’s the story? Is the officer going out of his way to help you out? Then why not help him/her?
I am renting a property for 51k baht and electricity bill comes upto 15k. I was also staying at a condo for 15k a month and electricity upto 3k. But that’s with security/pool/sauna/gym. Anything cheaper than that would be in poor locality.