Good afternoon Donna,
Your up to date information, as far as social security is concerned is included in your Social Security Statement which is available to you online.
If you have misplaced your last statement then the fastest and most practical way of getting your latest up to date statement is right online, from the comfort of your own home or office.
You can open your own social security online account and see your earnings statement, estimated retirement benefit and much more, in about 15 minutes through this site: http://www.ssa.gov/myaccount/
If you believe the information in that statement is incorrect, then you will have no other choice but to visit your local social security office and ask them to recalculate your benefits.
As you probably are aware, your Tier 1 RRB are decreased based on payments due from social security---and because your social security benefits change each year---sometimes more dramatically than others---your Tier 1 RRB will change as well to compensate for the greater social security benefit you are receiving.
You may reply back to me using the Reply link and I will be happy to continue to assist you until I am able to address your concerns, to your satisfaction.
Kindly, remember to rate my service to you. That is how I am credited for assisting you.
I wish you and yours the best this holiday season,