Air Canada has a policy not to communicate. We had the same non-communication coming from London, UK to Toronto. No plane, no communication. Finnaly they put us up in a hotel, but in the morning, the no communication policy started again, as no bus to take us back to the airport; we all could have walked to the airport before the bus showed up. I thought the hotel was going to be destroyed as the people were so hostile. The flight back was not a friendly as it could have been, but hey, their no communication policy is a major problem for Air Canada. Flying the friendly skys is just a saying!