What is the test for revoking a beneficiary designation?

In his written submissions, the defendant refers to Rainsford v. Gregoire, 2008 BCSC 310 [Rainsford] and says that at para. 37 the court states: “[t]he declaration revoking the beneficiary designation must clearly identify the contract, describe the insurance or insurance fund and must relate to the endorsement that is made in the policy”. In fact, that sentence does not appear in Rainsford. The defendant’s submission would read the definition of “declaration” as requiring satisfaction of all three of subparagraphs (i) through (iii), whereas the statute clearly provides that it is sufficient if the instrument that is relied on falls within any one of those kinds of instruments.