I have an open ticket with them and I have been trying to call them from the ONE AND ONLY (paid) number that they provide on their website ( *******959). All other 800 -toll-free US numbers are not working at all- no dial tone at all. I was on hold for one hour and it got disconnected. My hold for the second hour got disconnected as well. I paid in advance for two international tickets and they do not even answer the phone. I do not know what to do and where to complain!
Update: After 2.5 hours on hold on 07/22/2021, I was able to speak with a live agent, only to be told to contact the airlines. I had an open ticket and the airline website wrote to contact the ticketing agency. In any way, I contacted the airlines, United Airlines via online chat. They issued me a new ticket in less than 15 minutes and I even got a refund. I will NOT be using Flight Network again.