Child Maintenace Question

[Frida]

The low maintenance that my ex husband pays to support our children is based on his income as a single person. He has subsequently moved in with a new partner with a well paid job and their joint income is substantially higher so his disposable income is higher than when we settled the divorce. Do I have grounds to ask for an increase in maintenance and if so how do I proceed?

[Gazer]

The Child Maintenance Service website sets out these things.

Don't expect a quick response though, I have been awaiting an update on expenses claim made in March 2023, the CMA claim has also been reversed as our children now live with Dad not Mum, that update hasn't been processed either (court ordered).