I received the same letter. As I don't use Goodbodys any longer I filed it under S. Best to call them and tell them of your concerns of being charged for holding an account in the first instance.
Because of the lack of business in Ireland (and the UK) most brokers are having to relate to increasing their charges, which in the main for large
clients will not wash. I predict that eventually most of the smaller brokers in Ireland will either be taken over or merge either together or UK / US brokers.