Unable to Cancel or Modify Corendon Airlines Düsseldorf-İzmir Round-Trip Ticket

I purchased a round-trip ticket from Düsseldorf to İzmir (July 15, 2025 departure, August 9, 2025 return) through Obilet. Due to unforeseen issues with my leave schedule, I requested a cancellation or change for my tickets. However, I was told that neither cancellation nor modification was possible. Despite reaching out to Obilet over seven months in advance, I have received no support.

I’ve purchased tickets through other platforms before and never encountered such rigid policies. Choosing Obilet for this booking has been a regrettable experience, leaving me as the only one facing this inconvenience.

Unexpected changes, such as flight delays or cancellations, occur often for airlines, and passengers also experience unforeseen challenges. I believe exceptions can and should be made in such cases. I urge Obilet, along with Corendon and Eurowings, to address this issue and resolve my grievance fairly.