I am about to file for S.S. benefits at age 62. I was told I owed S.S. money some years ago. I filed a waiver and was exonerated from paying some $9,000. I just received another form-inquiry from S.S. to complete asking what I did with some $5,000. This money was covered under the waiver I had filed. Can S.S. garnish my checks or a portion thereof?