Ok I'll try to help here..
Slash, the villas at Meydan are for 777 Captains.
If you are joining as 380 DEC, you are entitled for a 5 bed Villa over the Palm.
Alternatively, you may ask to opt out of Company Accommodation, in which case you will be given a generous 450.000dhs allowance.
Hope it helps.
Looking forward to fly with you..
MS