You should call the benefits center.
I retired last year and during one of my many calls to the benefits center I asked a pension specialist how they could calculate the pension amount if they only had social security estimates. She said the estimates were all they had at the time, and she said if at any time in the future I believed the pension amount was incorrect I should call back and they would review it and make adjustments if necessary.
Make sure you talk to a pension “specialist”. The first person you talk to probably won’t be able to help with this
Good luck