Can I take action in court against this lawyer?

The plaintiff couldn't reach me in 2006 to serve me a complaint on note. I was served an alias summons about 8 years later. ABOUT 16 days later a lawyer called up . Said he represents credit union. He asked me to verify I owed the credit union. He asked how much I could pay. How much I made. When I said 100$ he complained that its not enough. He then said i should agree to a judgement and said its good because it will lower the interest rate. He asked me several times to consider agreeing to judgement. When I said no he said hes going to persue a judgement anyway. 4 days later a judgement was filed against me. Sad on Guam.
Anyway, went to court for Order For Examination of Jugement Debtor. I agreed to pay 150 a month