RM3720 | Reviewing the claim form: The details you need
From HM Revenue & Customs · Repayment Claims Manual
For every case selected for detailed checking for the first time you need to obtain for each source details of
the name(s) in which the capital is invested
how the minor got the capital.
If it was from an estate ask the claimant to confirm that the
money was bequeathed directly to the minor under the will. If
the claimant cannot confirm this, ask to see the document which gave the minor a title to the capital and submit the claim to HMRC Trusts Head Office Edinburgh
any family relationship between the minor and the person(s) who gave the assets or money