Stay clear and do not give your money to these thieves.
Even after they cancelled a flight, they made me pay $50 in order to retain the value of the flight.
They then inflated the price of that same flight I wanted to rebook by 200%, and also claimed I had to pay an additional rebooking fee of $45.
Flight Network's customer service is trained to trick you into paying more and more money - you will never be able to compensate for what you originally 'thought was a better deal' compared to buying directly from the airline.
Do not loose your time or energy with them.