Trip.com complaint: Did not inform of cancelled flight

My flights from Athens to Kilimanjaro were cancelled by Turkish Airlines. They emailed me, but I could not log into Turkish Airlines with my booking reference to select a new flight. That day I contacted trip.com to ask for help. They told me my flights were not cancelled. I asked why I could not access my flights and that I had communication from the airline that they were cancelled. They said they would look into it and let me know.

3 days later, I had not heard anything I reached out again. They ed my flights were cancelled. I asked for help getting new flights and they offered me flights 3 DAYS later, changing my 13-hour trip to 35 hours, saying they would not help me arrange accommodation in Athens, and that I would need to speak to the airline. I was told if the new flights cost more than my ticket, I would have to pay the difference too.

I was told to contact the airline, the airline sent me back to trip.com. The next day after 5 phone calls and many emails, trip.com admitted it was not the airline that was responsible to help me. I eventually got my flights sorted, for a day later.

I asked multiple times, via email, how to file a complaint. No one would help me with this.

I am complaining that trip.com did not inform me that my flight was cancelled. When I asked if it was cancelled I was told everything was fine. If I had not been proactive with this, the matter would not have been resolved. I still need assistance getting accommodation for the extra night in Athens I need to spend and they will not help.