I was bumped twice by AeroMexico this winter - first Mexico City to Campeche and second from Mexico City to Huatulco. Both times I had all my paperwork for a confirmed reservation, and no warning of being bumped until I got to the airport (early BTW). AeroMexico employees very rude, gave various excuses but could not explain why I could be bumped with a confirmed reservation, said the plane(s) were full, nothing they could (would) do. They also refused to check other airlines for alternate flights.
They did not charge me for the flight(s), but they refused to reimburse my bus trip(s) from San Miguel to Mexico City, or my rental car(s) at destinations, which I had paid in advance. I was lucky that the hotels in both cases cancelled my reservations at no charge.
Has anyone else had this experience with AeroMexico?