FNB insurance for sectional title with no body corporation

I signed an home loan agreement with FNB for a sectional title property. In the agreement there is a clause for Homeowners (HOC) insurance with a quoted insurance premium. Now when i am trying to finalise the bond registration, FNB insure contact centre representatives have told me that FNB does not insure sectional title properties. This is now holding up my bond registration because i need to ascertain HOC insurance for the property that I am purchasing(because there is no body corporate to insure the property) ... And the very same bank cannot insure this property anymore. To me this is a breach of contract because I was quoted for insurance and now they don't want to insure. This is confusing and FNB representatives do not even respond to emails/calls and cant give me a reason why they do not want to insure sectional titles.