If, in a case where section 1 of this Act applies, any person receives a written application by the tenant for consent to a proposed transaction and that person—
is a person who may consent to the transaction or (though not such a person) is the landlord, and
believes that another person, other than a person who he believes has received the application or a copy of it, is a person who may consent to the transaction,
he owes a duty to the tenant (whether or not he owes him any duty under section 1 of this Act) to take such steps as are reasonable to secure the receipt within a reasonable time by the other person of a copy of the application.
The reference in section 1(3) of this Act to the service of an application on a person who may consent to a proposed transaction includes a reference to the receipt by him of an application or a copy of an application (whether it is for his consent or that of another).