If your case has been subjected to a penalty OR default maintenance calculation, these can be made into proper assessments if the relevant earnings info is supplied.

Re; a change of circumstances, these will not be carried out retrospectively, if you did not inform the agency at the time the change had taken place.

You need to apply for your Data Protection file asap, there’s a template letter in the downloads section at http://www.afairercsaforall.co.uk – once in receipt you will be able to establish what has been happening with your case – you will also be able to see if the Change of circumstances that you did notify them of, is indeed logged on your case, if it is, then it needs to be actioned.

Are you still liable for ongoing maintenance payments for your child/ren OR is your case arrears only?

If your income changed since your last assessment, apply for a re assessment now, to enable an uptodate calculation.