Question 986: What can I do to find out why I was not told about Tier 2 benefits during dissolution of marriage?
Answer: It sounds like your divorce attorney did not property represent you.
Ask the local Bar Association for a list of attorneys who are experienced in the division of retirement benefits in a divorce. Some attorneys will represent you without charging a fee, or by changing a reduced fee, depending on your financial situation.
It sounds like you might have an opportunity to reopen your divorce to provide for a portion of your former husband's Tier 2 because you were not properly represented by counsel, but I am not a lawyer so I cannot estimate your chances of success.
A "statute of limitations" probably applies after some number of years have elapsed since your divorce, meaning you would not be able to open the divorce or sue the divorce attorney for malpractice after that time. Hence you should contact another attorney as soon as you can, in order to take any needed actions before the statute of limitations applies.