I have called, written and called again but still I recieve regular letters informing me that my Ex will be paying me 'this amount', 'that amount' and 'yet another amount'.
I have never recieved a penny of this money. I did not ask them to chase this money for me. I do not want his money!
Back story: Ex and I split when DC2 was 9mths old. I suddenly realised I was stronger than I thought and told him to take his cheating, lying, prostitute paying, cocaine snorting (the latter two were things I found out years later) self out of my home. When he left he continued to pocket the tax credits for 1mth as thats how long it took them to change it to my account 
He choose to have no contact with the kids, then 2yrs later (when I had found a nice man) he decided to apply to the court for access. He was granted 2hrs a week (supervised by me), he showed up once and stayed for 36min! He applied for access again after another 2yrs and didn't show up to court.
He has never sent DC1&2 anything, not so much as a birthday card but yet I still recieve these letters.
DC1 is now 9 and DC2 is 7. I am married to a lovely man they call dad and have another DC. I hate recieving these letters and do not want a penny from this man (not that he appears to send any). AIBU to ask them to stop?