Don't book through agency in the "clouds"

Booked a ticket through them. But within a couple hours we realized we entered the old passport number. We tried every possible way to get hold of them. Their pathetic chat box is computerized which does not answer questions pertaining to one's query. Finally the only way we thought we could possibly change the passport number was by canceling the ticket then re booking another with the correct passport number. They mention a cancellation fee. But straight away we called Taag which is the airline and they confirmed E Dreams had NOT cancelled as yet. We to get hold of them to stop the cancellation. BUT IT IS IMPOSSIBLE TO GET HOLD OF THEM. No email except going through their portal which is useless. The next day we were told the trip is cancelled but a refund will be given within 30 days less their fee. My question here is.....proof we had proof that edreams had not cancelled within 12 to 24 hours. We tried to stop the cancellation on their pathetic portal chat. But automated generated answers. Nothing unrelated to the query. No person one can chat to over a phone. No numbers! We eventually through an angry customer got their email address.