8 Purportedly pursuant to clause 9 of the loan agreement, Advertising lodged its caveat over the property. Ms Evans seeks the removal of that caveat. She says that there was no proper basis for the lodging of a caveat under clause 9 of the loan agreement. She says this because, first, the clause was too uncertain to give rise to a charge which would be a caveatable interest and by reason of the uncertainty, the clause was unenforceable. Second, she says that the security clause at best was an agreement to agree and was, for that reason, not enforceable and third, she says the precondition of the security clause was not met, or at least there was no evidence of it ever having been met, that precondition being that there was a requirement for the lender to require the lodgement or preparation or such legally enforceable, and registered if so required, mortgages, and guarantees or indemnities or other securities as security for payment of the sum the subject of the loan.