1. Home
  2. Contact us

Contact us

You can send us a message by registering or logging into your self-service account. You only need to register once and it is easy to do. The site is secure so all your personal information is safe. You will need your 12-digit customer reference number, your National Insurance number and your 7-digit PIN.

The website is available 24 hours a day, 7 days a week. Using your self-service account to contact us is much quicker than calling us.

If we have given you a Customer Reference Number, make sure you have got it handy so we can direct your enquiry as fast as possible.


For cases based in Great Britain

Send us a message online if you are logged into your self-service account.

You can make a new application by visiting Child Maintenance Options. Visit www.gov.uk/making-child-maintenance-arrangement for more information.

Write to us at:
Child Maintenance Service 21
Mail Handling Site A
Wolverhampton
WV98 2BU

If you cannot hear or speak on the phone, use Relay UK: 18001 then call us on our contact number. You can find the number in your welcome pack or at the top of any letter we have sent to you.

For cases based in Northern Ireland

Send us a message online if you are logged into your self-service account.

You can make a new application by contacting Child Maintenance Choices. Visit www.nidirect.gov.uk/child-maintenance for more information.

Write to us at:
Child Maintenance Service 24
Mail Handling Site A
Wolverhampton
WV98 2BU

If you cannot hear or speak on the phone, use Relay UK: 18001 then call us on our contact number. You can find the number in your welcome pack or at the top of any letter we have sent to you.

More information

If you want to learn more about this site and our services, you can find more information in our Help and FAQs