If the mortgage is portable it isn't really a new application.

This might not be a helpful route if your new mortgage will need to be larger than your existing mortgage, but still no harm in asking I guess.

if you search "lenging critera {name of bank}" you will find what the intermediaries are required to provide from the clients.

your lender incidently required you to be discharged for more that 3 years not 6 so as Kevin suggested you should get another opinion.