DECLINED FINANCE

i am so frustrated right now i app**** for finance through MFC and when somone phoned to confirm i misunderstood the question (human error) and said my sister will be driving the car and meant it in the way that she will be driving it occasionally as a second driver on my policy . i am solely responsible for this finance its in my name and the funds will be coming out of my account i am now left without a vehicle and have a sick mother at home , and because i misunderstood the question i am being penalized, surely you will be able to see the where funds will be debited from ? totally frustrated right now