Pampa,
Keep trying until you get a response. I'm guessing your email hasn't reached the right person or else they were flooded with emails and passed over yours. If I had your qualifications I'm not sure I would want to spend 7 years or so in the right seat at EK. Think hard about that one. Dubai is getting more expensive by the day and EK knows how to get every ounce of productivity out of their employees.