Air Ambulance my 90 yr mother to UK

I am on holiday with my family in fuerteventura, my mother who is 90 didnt want to come because she didnt like flying and couldnt see properly due to her age.
We talked her into coming 1 day befor the flight so she wasnt alone at xmas. We didnt have time to arrange travel insurance.
Today the night before flying home we all went to see a flamenco dance act in a hotel, when we was leaving my mother didnt see a very small step (1/2 inch high) she tripped and fell heavily on her hip, she was in agony, amubalnce was called and when in hospital x rays showed multiple fractures to her hip. They have put her in traction and in so much pain.
They cannot operate until next week and suggested we get her home to UK, but we have no money to pay for an Air ambulance, we desperately need finacial help.
We have received an air ambulance quote it will cost £30541
Please help me, I dont know what else to do, I have to get my children home and leave my wife with my mother, both the flights home lost.
This is a real emergency , please, please help me 
This is a nightmare.