Orkun Kokcu has admitted he has been disappointed with two contract offers from Feyenoord.
Despite his commitment to the club, Kokcu suspects the Dutch club do not want to reward his talents.
"I've had an offer twice now that – with all due respect – wasn't what I'd hoped for," he told Voetbal International.
"And now it is quiet. I don't know if it's conscious, but it sometimes feels like the club is waiting to sell me after all. That there is no turning back then. It feels a bit uncomfortable. Does Feyenoord want me to stay?
"I know, clubs are having a hard time, Feyenoord too. But in principle I will earn money for the club if everything goes well.
"And I really don't have to become the highest-paid player here, not even close. Just give me the feeling that I am really a key player in every way."