The Island's Trades Union Council says the last direct talks between government and bus drivers was in December.
The body took to Facebook after the Department of Infrastructure said it was still willing to negotiate either directly or through the Manx Industrial Relations Service.
In its post the TUC says the government should be honest with the public about what's been proposed and engage directly in meaningful negotiations.
And it says Unite the Union is happy for talks - as another four-day bus strike starts tomorrow.
House plans for former builder's workshop
Do you have missing southern show trophies?
FA: You're not singing this weekend!
Minister aware of UK problems with Manx immigration documents
Gales spark plantation warning
Gales force cancellation of two ferry crossings
Weather warning about gales today