My ex partner whom we share 1 child lives with his current partner and their 2 bio children plus 2 others from a previous relationship of his current partners. I have been using the child maintenance service to claim for our child and have recently had issues with my ex not paying the correct amount that was calculated. I reported this back to child maintenance and had the arrangement changed from direct pay to collect and pay to solve this issue. His current partner whom he is still in a relationship with and lives with has also set up a child maintenance case for their 2 bio children. I just want to clarify that this is fraud as they are already being provided for financially and they all live as one family unit. I believe they have done this to try and get out of paying what my child is legally entitled to and I am struggling to understand why you would want your own child to go without what they are legally entitled to.