My ex stopped paying child maintenance and when I reported the missed payment I was forced to go from direct pay to collect and pay. Because nothing was being done about my missed payment I contacted my local mp. As a result cms setup a deo. However the amount I will be getting is a lot less than if I was getting my payments through direct pay. I knew 4% would be deducted however it seems like it’s more 10% I will be losing. Online it’s showing the correct calculation already with the 4% deducted. However on the letter I received the amount I should receive for this year (before deductions) is very different from the amount I was given for the annual review last month when I was getting direct payments (around 10% less). I was told by cms they were not able to contact my ex so no changes were reported that could have changed the amount I was meant to get. Arrears are also incorrect. So my question is should I complain directly to cms about the amount I will get and arrears? Or should I contact my mp again?