Well, I think that it is not very good when companies involved in preparing for the certification exam do not have the necessary data on the subtleties of passing the exam. When I was preparing for the certification exam, I bought
PMP course from Spoto, where the whole process of passing the exam was described in great detail. This course helped me identify my weaknesses and focus on them. Be careful which company you contact, so that it does not happen that their questions do not correspond to the real ones.