I'll try using "gold" more often then, I've been able to get him to pay rarely, but most of the times he emotes giving me money, sometimes with the coin symbol, but never actually giving me anything.
I also have a potential bug. When Celandine started spam following me,(as she does) during her house key conversation, she also gave me wooden doors each time she followed. It was only 3 doors, but still a (profitable) pain to get rid of them.
One final, optional, question. Rosalyn mentioned someone named Isolde, in Thalassar, who she gets herbs from. I was curious if Isolde is a character who'd make an appearance in the future, is an off screen NPC, or if Rosalyn just made someone up?
Thank you again for taking the time to read my lengthy comments.