I booked a multi city ticket with Momondo, and upon selecting price it directed me to the justfly website automatically picks up the booking dates. 25 hours later, i realize that i was booked on a return trip and was going to be transiting for 3 hours rather than the 3 days I had selected. I called customer service and waited for 30 minutes, but was told that I had booked a return something I am sure I didn't do (my word against theirs). I then asked how much it would be to change my ticket to Toronto to 2nd May rather than 5th so that i could spend 3 days there - all other flights on the ticket were accurate. I was told it wasn't possible and that they were keen to advise cancellation of the ticket where i would have to pay a discounted cancellation of $100 and $260 for penalties and then use them again to re-book. I told the agent it is cheaper for me to buy a one way ticket to Toronto and maintain the ticket but all she cared about was convincing me to use this option and how it would turn out cheaper. Tip: I was issued a ticket with details i hadn't booked - so make sure you triple verify within 24 hours. Imagine the frustration of being told you booked a return when you are sure you didn't. I will never use this site again.