no further payments are due under it;

the order is ineffective or some other way of securing that payments are made would be more effective;

the order is defective;

the order fails to comply in a material respect with any procedural provision of the Act or regulations made under it other than provision made in regulation 9, 10 or 11;

at the time of the making of the order he did not have, or subsequently ceased to have, jurisdiction to make a deduction from earnings order; F4...

in the case of an order made at a time when there is in force F2a default or interim maintenance decision, it is inappropriate to continue deductions under the order having regard to the compliance or the attempted compliance with the F3maintenance calculation by the liable personF5; or

the circumstances in regulation 10(3) apply.