It was really simple, I went to the office and once my number was called I told the lady that I have worked with a made up ssn and I want to transfer my benefits over to my new number. She then asked me if I had a ssn assigned to me and I gave her my legitimate ssn card with my CA DL. Then she asked me when I started working and where, at this point I whipped out my W2s and she started typing the info from them. She found right away earnings on that number with my name and she did some typing and was done in about 10 mins. That was it.