I am looking to rent a car in Canada (YYZ to be specific) for one day. Currently the rate I'm finding is $168. Are there any coupons I can use to waive the underage fee? I am 20 years old and I would sign up for Gold Plus but the minimum age for that is 21 (even though they let you rent at age 20, they make you wait a year to join their Rewards program, which is kind of funny. I guess 20 is that awkward age lol).