The part that is a bit strange is that the only Security is Life Policies, these would repay the loan in event of her death, but how would the Bank recover their money should she get into financial difficulties, or become unable to run the business through illness in the next 6 years. Banks usually want Realisable Security, ie something they can sell such as a house or business premises, all stock and machinery (if it is that type of business). The early surrender values of the Life Policies probably would be insufficient. Unfortunately I think the appointment is important to find out how they are thinking, and what their exact requirements are.
You may be lucky with office hours now coming to and end, there may be a BOS employee come on here, or at least a Bank Manager who is still working and more up to date than me.