I am facing 8541 Error code since last 1 month. I am trying to list my books on Amazon and due to partial match of ISBN in amazon catalogue they are not allowing to list any books. Even after calling and asking for help multiple times I get the same reply as they have raised my query on a higher level but still they are not providing any solution. They should sincerely look into this matter as many people are facing the same issue. I am confused why are they not interested in resolving this issue for their sellers.