Save family home after my death

My Name is Jon Pearce and I have Terminal Cancer with a prognosis of around 3-4 months. I took out life insurance to enable me to have peace of mind that my wife and step daughter would be left behind with our home to continue living in should anything happen to me as standard I took out a life insurance practice, Unfortunately it now appears that the sales person for life insurance by the brokers I used had misguided me on how to answer the  questions and also can not find the recording of are conversation and now the large very well known company will not pay a penny. I’m now living the very my last part of life with failing health with no way of ensuring that Jemma and ella can continue to live safe in our family home as planned for and hoped, not be forced to be homeless after my soon approaching death. Im asking anyone Please if they can kindly help me raise the funds to pay off part of my mortgage to help my family to continue to live in are family home. Thank you