Can the requirement for a grant of Probate/Letters of Administration be waived?

Can the requirement for a grant of Probate/Letters of Administration be waived?

Defence Bank and its entities are under no obligation to release funds of a deceased account holder without a grant of Probate/Letters of Administration being provided by an estate representative.

However, in very limited circumstances, we may be prepared to waive the requirement to provide a grant of Probate/Letters of Administration.