OP and DP currently have 50:50 childcare split. ExP was voluntarily paying money to OP, as well as half of school trips and providing medical, dental, and mobile phone contracts for DC.
OP discovered ExPs income was higher than she thought and asked for more money but he said no because they have 50:50. (In fact when the child benefit people asked for evidence OP admitted ExP had, had DCs an extra night to her in the preceding period of about 12 weeks)
Because he refused to pay more she took him to CMS claiming to be primary carer. (There was another thread where MNs said this was a bad idea and risked a good coparenting situation) Which she states is due to doing paperwork for school trips, even though they pay half each, and the fact that when the kids were younger she had them more.
Because she gets child maintainence CMS recognised her as primary carer. So her ExP put in a rival child benefit claim because he disputes that she is primary carer because of all the reasons above. She felt this is unfair because he earns too much to get the money, he will be taxed on it. That hes only doing it to prove hes 50:50 parent (we all said good for him)
She then asked how we thought it would go and ExP has been awarded Child Benefit for one of the children and is taking the CMS case to tribunal arguing as they are 50:50 he shouldnt pay this CMS. Hes also said he wont give her a penny more than CMS amount going forward.
And were waiting to find out how this ends