Hi, can anyone advise what might happen in this situation please. We are divorced and currently our son (12) lives 50/50 with each of us. From November he is spending more time with Dad, something like 70:30 which means I will be paying ex maintenance. I am perfectly prepared and willing to pay but ex wants to use the CMS collect and pay service as he says "he doesn't trust me" - he wants me to be forced into paying the extra 20% as part of his plan of making my life as difficult as possible as he was never happy about being divorced. So I suppose I am saying will CMS listen to me when I explain this - and I can prove I've paid him - surely they will? Feeling worried 