Really upset about the bad service and in detail:
1. impossible to call any number (I live in London and I thought I would go to hammersmit Opodo Office since I have been trying to call for 5 days)
2. I paid the "free cancel option" and find out later that I'll pay 20% of the ticket than for legal issue is more correct to cancell the advertising "free cancellation"
3. My problem was that instead of going from London to Miami I have to go to NYC. After 5 day whit not dialing I bought a ticket from miami to NYC....not whit Opodo ofcourse....
Very bad service (indeed non-existent) I sincerely believe that it is not legal not to have active phone numbers and for fake advertising.