Citizens advice website says the lender is obliged to consider options if you can't pay - like shifting to interest only
A year ago we asked our lender to shift to interest only as there's enough equity to sell off our flat and pay off our second home (where we want to retire to)
They said no as we have to earn £150,000 a year to do that 
Now we HAVE been allowed as the government has forced them to do it for 6 months
We want to keep that going and just pay interest only until we retire in 10 years, sell our flat and pay off our second home
Are they likely to let us?
(My health means that trying to do two jobs is too much for me and at some point I'm going to burn out and HAVE to shift into one job. We can't go and live in our second home and give up work as we're too young)