First Year 2024 RMD taken in March 2025

I have taken my first year RMDs for 2024 in March 2025  as required by April 1.  I have been told by the company holding my account that I will need to file Form 5329 with my 2024 taxes with a letter of exemption asking for a waiver of penalties.  This seems unnecessary since I received the RMD by the required time.  What is required?