anjg,
Take a look here it may help:-
http://www.csa.gov.uk/en/case/remo.asp#jump-p
"Reciprocal Enforcement of Maintenance Orders or REMO is the process
by which maintenance orders made by UK courts on behalf of UK residents
can be registered and enforced by courts or other authorities in other
countries against people resident there.
This is a reciprocal arrangement governed by international conventions,
which means that foreign maintenance orders in favour of individuals
abroad can likewise be registered and enforced by UK courts against UK residents.
The precise nature of reciprocity available between the UK and another
jurisdiction depends on the convention or agreement to which the other
country is a signatory"
