Warehouse Keeper Sorint:
It's been a long time since I saw you. So, have you obtained any new coins? Word has been spreading among members that you have been showing some great trade skills lately. Well, anyhow, is there anything I can help you with?
Tell him that you would like to raise your membership grade.
Ask where you can obtain coins.
Ask about the members of the coin collection guild.
Tell him that you would like to leave the guild.