How do I change my birth date in the application for MOO contract. I tried three time to go back to the page that my birthday was on, but the system would not let me. When I was putting in my birthday the calendar would not close so I put the year in manually. It must have defaulted to this year.

I was on in the contract, signing the agreement, when near the end of the signatures was my birth year of 2012. Please assist. My correct birthday is 06/13/1947