Corporate Law, Business Law - Australian National University. Anyone can explain me below case.

Beyoncet has organised the sale of her property and it is going smoothly. However two weeks before settlement she received a call from the r/e agent advising the purchaser wanted to add clauses/conditions to the contract to ensure the property was left in good condition on expiry of the lease and for when she moves in.Given that Beyoncet and James were overseas and were only contactable via email, her Conveyancer advised the r/e agent that given the purchaser had already signed the contract with the lease condition, it would not be in the vendor's interest to be adding further conditions now, and the condition of the property on expiry of the lease would be covered by the bond, which is something the r/e agent needs to manage.

a) What do you think the outcome was to this situation for the purchaser? Why?

b) Beyoncet was enjoying her short break with James overseas and she sent her Conveyancer instructions to get the deposit released for her unit. It seems the holiday was a bit more expensive than they had planned and they have run out of money. Unfortunately on the letter from the bank, for s27 purposes the purchasers conveyancer states Beyoncet has her account in default and on that basis the purchaser won't release the deposit unless the bank writes another letter saying that our client is not in default.

What do you do?