Faulty rear screen heater. - lot
Heated rear screen not working-switch is. If a fuse, finding difficulty in ascertaing where to replace - glove compartment or under bonnet and where within these boxes-any thoughts appreciated.
Faulty rear screen heater. - Screwloose

The fuse should be number 10 in the fascia fusebox. It's may be a 40 amp one if you've got heated mirrors too.

The wiring to the hatch may be a good place to check too.
Faulty rear screen heater. - lot
Many thanks