Hi Fiona Hunter,
To assist you with your inquiry, please reach out to one of our advisors by phone or send write in to our caseworkers.
They will help you access your accounts and check for any issues regarding your payment allocations.
If you choose to call, make sure to have your National Insurance Number ready, along with any information about the payment you made, including where it was intended to be allocated.
You can call us on 0300 200 3500.
National Insurance: general enquiries
You can also write in with your enquiry to the International Caseworker, the address is…
National Insurance Contributions and Employer Office
HM Revenue and Customs
BX9 1AN
Please include your National Insurance number and up to date contact information in your letter so we can access your records to investigate the issue and respond to you.
Thank you.