Emirates condones ***ual harrasment of a passenger despite complaints

On the 3rd of February I flew Emirates from Cape Town to Dubai. I had to endure 7 hours of ***ual harassment from the male passenger seted next to me. I brought it to the attention of the cabin crew on 4 occasions. On the last occasion, they moved me to another seat after telling me that all the seats were occupied. I wrote to Emirates explaining my experience, but the email has gone unanswered. I would have expected better from this airline - especially as a female and the circumstances of the event.