My wife, 5 year old and I are all 50K members and when reviewing accounts, I had a question about mileage accumulation. I looked on the Air Canada website (http://www.aircanada.com/en/aeroplan/earn.html) about mileage accumulation and am wondering if there is a minimum 250 miles for Altitude members (or is it 25% of 250 for every Tango flight under 250 miles)?