My sister and I are both Platinum members on Air France so one would image that we would be a priority passengers. It all started on our Air France flight #0445 leaving Rio de Janerio Brazil going to Ho Chi Minh City Vietnam on April 18. On April 17TH I received an email from Air France cancelling my sister, my daughters and my flight because of a volcano in Iceland. I wasn't thrilled about it but things do happen. When I went to the airport the next day to re-book our flight I wasn't able to confirm anything other then to depart April 28 which it takes 2 days to get to Ho Chi Minh City and would give me 1 full day in Vietnam before our return flight. AF ticket counter in Rio was unwilling to help us and even rude at times so we decided to call the 800 number after 1 hour wait on line a ticket agent at their reservation desk which I believe is in Canada told us that AF had in fact seats but it would cost my daughter and I an extra $1,687.00 USD in order to get to our destination on April 25. My daughter and I were on a full fare economy ticket (over $5,000.00 USD) already and my sister was on a discount fare ($2,713.00 USD) so her up-charge was too much and therefore she had to miss her vacation. Unfortunately we were at the mercy of AF and we did see their true colors. When our flights were cancelled I thought that AF would understand the situation and not get greedy and take advantage of the volcano and punish itâ€™s good customers.