Does promotional code for emirates airline exists? if yes does any one have one please..?

Hello every one...I am flying at the end of this month and want to book the flight ticket with emirates. i have been told that one can get the discounted ticket if one has a promo code. i never knew one can have a discount on airline tickets with codes. is it true and if yes does any one have one.i will be very grateful to them....please let me know...many thanks...