If a Hirer is more than one person then each is jointly and severally liable for the performance of this Agreement. Unless notice in writing from one or more Hirers that some or all Hirers (or agents appointed by each of them) must together access the Box is acknowledged by the Company, then any one of the Hirers shall have the right
(1) of access to the Box, and
(2) to add or remove Hirers, and
(3) to appoint an agent for all join Hirers.
If such notice is acknowledged then the Company is entitled to refuse access to the Box if it is not satisfied that it has been complied with. Upon death of one joint Hirer the survivor(s) are the only parties capable of exercising the Hirer’s rights.