If clarifications are not clear, you should go back to the bank, look for the Branch manager and ask them for a satisfactory answer. There should be a Financial consultant at the bank working for the representing insurance company who should be able to give you answers.
I was advised that once the option is exercised, I would be liable for the property even though the bank loan is not disbursed. As long as I have signed the facility letter, there is a binding. Therefore to ensure my family will not have difficulties, (touch wood) if anything were to happen to me, it would be wiser to pay for the extra three months. I hope this helps.