Found in Version:
Upon finishing the quest "Burden of Proof" and making Diranya satisfied, she tells the player that they will get access to Roa Dyr's services. The same information also appears in the journal. However, the mer in Craftsmen's Hall will still give you a Service Refusal response, and tell the player that they only serve members of House Indoril. There are a few other NPCs offering services in Roa Dyr, but as far as I understand they did that also before finishing the quest. I might have missed something, but I interpret Diranya's offer as you will get access to all of Roa Dyr's services, which is not the case.