The booking ticket for the airline company was not working, I talked with the airline company and no ticket on my name appeared in the system. Also I tried to change the timing of the flight, and even if Opodo said that they will answer in 48h, they never did. It is very hard to contact them via chat or email. (They don't answer to the emails, they don't even read them, and the agents are just useless. They have standard responses and they don't do anything to help you)