Hi Brababe,
I have an interview with Amiri Qatar next October 12th in Uk, dont worry about the age, I'm 34 and I look younger, but I believe the important matter is your experience, personality, skills and capabilities, so don't worry about the age and go for it.
In your situation you should call to them, the agency is called Intaway, find the telephon number in internet and ask for Simon, is the person in charge for Amiri interview.
If you want more details send me a private message and I will answer your questions, ok?
I hope this help, and go for it!!!