Look them in the eye, say 'hayir'. For extra emphasis tilt your head back and tut. Guaranteed free passage through most of Turkey.I think the club need to learn the Turkish word for "No" and stick with it until the last week of the window in which case, do what you gotta do if it gets them off the wage bill for a year and there's no other options available.
It's not their fault there's little money sloshing around the Superlig.