Not Impressed with Fly CemAir

Ridiculous airline to say the least. I checked in 24 hours in advance and reserved my seat number. When I got into the flight there was someone already in my seat. To avoid a confrontation and a further delayed flight, I sat in an available seat but eventually had to move because the person sitting next to me was also in someone else's seat. When the flight attendant was confronted with this dilemma, she moved me to another available seat! I RESERVED MY SEAT IN ADVANCE and they move me instead of the crowd that sat in incorrect seats. There is no fairness or equality. Very disappointing behavior.