We booked Flixbus from London to Toronto. The bus never came. About 15 people were waiting with us for an hour and we decided to book the next one that was two hours later. Everyone was let on that with their previous tickets -while Flixbus mentions you need a new one- while we paid triple the price for ours. They will not give us refund for the second pair of tickets. The customer support told us that the first bus was delayed by 4 hours, without informing the passengers in any way :) Don't ever take a Flixbus.