For background, the 'paying parent' doesn't see my dd through his own choice and pays cm through the collect service.
I've just discovered that he changed jobs in May and is likely on a much higher wage now. It's on social media and his picture is displayed on the company website along with his new job title, so there's no mistaking it.
I have submitted the evidence to child maintenance, however, it's been rejected.
I'm not sure why it's been rejected or what to do now. Does anybody have any advice?