Unions say they are pleased with the turnout this morning of postal workers to a meeting in Douglas.
As they await their ballot papers - which have been delayed until tomorrow - 202 of the 272 Communications Workers Union members heard representative Terry Pullinger state the union's case.
The CWU say they want their case to go to arbitration.
The Post Office's management says, due to a public sector pay freeze, their hands are tied.
Mr Pullinger says a current unconfirmed rumour isn't helping the mood of the workers:
Barrister warns of failures from other jurisdictions with assisted dying
Police searching for stolen vehicle
Island can be 'a leading country' in providing access to period products
'Runway closures should be scrapped by end of summer', says Airport Director
Onchan Commissioners choose new chair and vice chair
Workshops to mark Deaf Awareness Week
