ISTANBUL AIRPORT TAXI SERVICE CAN BE FUN FOR ANYONE

Oooh dear… I am just cheated with the taxi driver… lol… He charged me 300 TL from Sultan Ahmet to Umraniye… He utilised crossing tunnel from european to asian aspect… his taxi is business enterprise taxi (blue a single)… bla bla bla… The hotel personnel reported that Ordinarily about 100 TL. Who is correct?So 15 lira as opposed to 12L