I know of someone, iv a post up here prev on it....one child, he ordered pay x a week, into court clerk from approx age 3 of child....he paid the same amount till 18yr old,...then very simple stop paying in his case...he married had more children but never revisited the courts ever, he just couldnt judge what way things would go....the mother and child situation also taken into account in how much to pay. At the time the man only had hp car and was told by judge he didnt need newish car, sell it and buy a cheaper one
in this case the mother drawing one parent allowance all her life so was never in her interest to chase him for money.
I also know of a fellow who since has passed, he let his maintenance remain unpaid for few weks, arrested at home and brought before the judge, got it reduced by 10euro...yet he had two new children and a mortgage to pay. At the original hearing he lived at his parents home.
have you discussed with court clerk or your solictor.