Im 17 and need financing for college we were denied at wells fargo moms debt is more than her income?

i want to go Dubuque university to study aviation, we were sent out a packet for financing, our first pick was Wells Fargo because its he first name we recognized. I needed a co-signer because im only 17, my birthday is Dec.24. All the other places' websites stated that I need to be 18. I called the school and the person in charge is on Vacation, HELP!!!!! any suggestions...