Thank you for your answer; but I'm somewhat confused.
My monthly payments and interest rate at 0% are not part of my mortgage condition. It's an arrangement I came to after many years of arguing (also lies and fraud by the lender).
My concern is this arrangement will not be carried over to the new lender and indeed the new lender will simply abide by the mortgage terms and conditions they inherited ignoring my setup with the old lender.
I hope you can clarify your answer. Thanks