My Mum would be 92 years old when the mortage is paid?

Hiya



I wonder if you could help, My Mum is 77 and was sold a Mortgage by Nationwide.



She has £50,000 outstanding on a repayment mortgage.



The mortgage is due to end September 2030 meaning she would have to live until 92 years old to pay it off.



Surely this should never of been allowed.



Can anyone advise please



Thanks

My Mum would be 92 years old when the mortage is paid?