Isle of Man Post says it was disappointed to receive a petition of 'no confidence' in the board and its chairman, Pam Crowe, MLC.
A twelve page document, sent to all 24 members of the House of Keys, contains 195 signatures of local members of the Communication Workers' Union.
Vice-Chairman of the board Geoff Corkish, MHK (pictured), told Manx Radio he thought it was 'a little discourteous' of the union not to send a copy of the letter to Mrs Crowe.
However, he confirmed talks, over pension rights for future employees, were continuing:
"As the parents of diabetic children, we can't tell if they don't know or just aren't bothered"
Chief minister expects challenge on renewable energy
Northern section of Mountain Road to close today
Online singing group created to help people with their wellbeing