Hello, I purchased tickets for me and my husband f...

Hello, I purchased tickets for me and my husband from FlightNetwork on February 3rd to go from Tehran to Toronto and back. Turkish airlines cancelled our flight due to covid and flightnetwork sent me the cancellation confirmation on June 8th stating that I will get full refund of $1846.02 back to my credit card. I still haven't gotten my refund and it's been more than 5months. Over this period of time, i have called them several times, every time I have to wait for 1 to 3 hours. They have the worst costumer service, whenever I ask them about my refund they say they will call me back or they will send me an email with my refund status but they NEVER do. The last 3 times I called them and asked about my refund they hung up on me. They don't answer my emails and I don't have any way of reaching them. This company is fraud and no one should do business with them because they steal your money and cause a lot of stress.