IEIM903320 | Deregistering as a User from the Reporting Service
From HM Revenue & Customs · International Exchange of Information Manual
There may be circumstances in which someone wishes to completely deregister from the reporting service.
However, it is not possible to deregister as a user from the reporting service.
In this circumstance, please contact the AEOI Enquires mailbox ([email protected]) to update them of your situation and they will provide you with further advice.