To ask if this amount of child maintenance is normal

[FluffyTabbycat]

£17.90
A week?
I think the ex is having on his dose not work, when we were together he earned about 350 a week, what do you all reckon?

Forgot to say this has been calculated by child maintenance service

And it's for one child he does not see

Use the online calculator. It does seem low. Did they give you a calculation sheet at how the amount was arrived at? Does he have other children? Are you claiming any benefits?

www.gov.uk/calculate-your-child-maintenance

Whether he sees the child or not is irrelevant in the calculations

I get £13 a week because he only works p/t. If that's calculated through CM then it will be right. It will get assessed yearly so it will go up if he earns more

Whether he sees the child or not is irrelevant in the calculations

It is, if the child was staying overnight with him 3 nights a week for example.

The OP mentioned seeing, not staying. I responded to the OPs words, not other peoples interpretations of what they think she might mean.

How could the child stay there but not be seen? Invisibility cloak ?