Thanks for the chance to help. I am an attorney with over 12 years experience. Hopefully I can help you with your legal question.
Ma'am, I am very sorry to have to bear bad news. Unless the pension plan he is a member of has a clause that guarantees that premiums
can not be raised, you will not have a case. And it is highly unlikely such a clause was in the plan.
What you describe is common. And happening more and more.
Pension plans are struggling to continue to provide benefits in the face of rising costs. This is particularly true for medical and dental benefits. And so, in order to keep the pensions solvent (avoid wiping out the entire pension plan) most pensions plans are forced to increase premiums.
This is happening across the board, from large pension plans to smaller ones.
It is not a violation of the pension plan to raise costs if raising costs is required to keep the plan solvent.
Again, I am sorry to have to bear bad news ma'am, but you will not be able to sue them for this
Please let me know if you have more questions, happy to assist if I can