Waste Me

Hi all had my iV for a little over a week now and with the morning frosts in May! I am struggling to defrost the vehicle before use. I have set a charging plan and enabled the AC setting the temp to 22, this all appears to work except the vehicle does not heat up at all. Getting in the car and turning the ignition on, while plugged in, I have tried setting the climate control to defrost / demist on full heat, again all the fans come on but no heat. Same again when unplugged. I have been following the user handbook and it suggest that there is an electric heater to assist in this but the switch referred to is not there suggesting this is an optional extra? Your thoughts and suggestions would be most welcome.