Got sued.fell behind,now agreed to let them take out of check.at 50.00a wk .but there taking 132.00 instead?

at the courthouse in rhode island i agreed to let them take out the $50.00 a wk.i uemed.but instead they are taken much more.just this past week they took$134.30 wow i have to pay rent and other things.i need help.please somebody must know what i can do.i work for shaws at night all nite.right now i can not afford a lawer.i simply do not have the money.from the start it was to be $50.00 a week.and never saying it was going to be more at anytime.i am being sued for 5,200.00.help!!!i am willing to pay 50. a week even $65.00 a week.but i can't do anymore than that.