https://www.epo.org/en/service-support/faq/law-practice/list-professional-representatives-entry/what-if-i-have-question-i
What if I have a question before I send my request to the EPO?
Please search for keywords in the relevant FAQ section. If you can’t find an answer to your question there, use the contact form. Make sure you select the topic "Request for entry on the list of professional representatives" for legal matters or “MyEPO” for technical assistance as a user of MyEPO. You will receive an enquiry number by email.