Just got my EV6 a week ago. Used the remote climate control yesterday as it was -1 outside and hard frost on the windscreen. It activated successfully according to the app. 20 mins later when I got in the car, not a jot of difference to defrost. Only bit remotely warm was the steering wheel. Cabin still cold and had to sit for further 5 mins with car running to get the windscreen viewable. Even after driving 15 miles it hadn’t fully cleared the windscreen. Am I doing something wrong or do I need to go back to the dealer. Any one else had similar ?