It is unfortunate that the aircraft swap prevented you from getting the class of service that you paid for. That happens, perhaps less on the highest- quality airlines, and you certainly should be compensated.

Although I have always had good service on probably two-dozen short-/mid-haul TK flights (mostly in economy and occasionally in business), I can imagine that they were curt in informing you that there were no more flights that day, and certainly not as helpful in trying to brainstorm alternative solutions (e.g., putting you on Austrian Airlines) as they should have been.

I find your post a bit suspicious, however. You say that they "insinuated that [you were] a racist." Might there be more to the story, e.g., you used abusive language at the gate? I find it highly unlikely that they would communicate with you that way out of the blue. I am sure that you are not a racist, and it is not unreasonable to expect them to speak English on an international flight, but yet you feel compelled in your post to express your opinion that Turkey is not a western/European country.

I am also astonished at your statement that your company has made 22 complaints to the airline??? If that's true, then I wonder why you are surprised that you received poor service -- and why you keep patronizing such a horrible company? There are countless options for one-stop CPH-IST service that avoid TK. If a service provider had so aggrieved me and my colleagues, I would avoid doing business with them at all costs. It seems clear from your post that you have some axe to grind with the company and perhaps the country in general.

I am sure that your business is very important, and the major deal that you were set to work on on your flight was also very important, but, still, this is a two-hour flight. Having a bit less space than you expected really isn't the end of the world, is it?