Complaint Review: cheapoair.com

I purchased 2 airline tickets from Cheapoair. 2 separate tickets for 2 different people. One was issued but the other was was not available due to technical problems.......but I could purchase the ticket for an additional $100.00.  Below is from their email.

"Due to the involved airline(s) that make up the itinerary you have chosen, we have experienced technical difficulties while processing your ticket and your booking could not be confirmed at the original quoted price."

Stay away from these people they are a fraud!