Advertising 99AED flight to some countries that is highlighted in AirArabia advertisement in all UAE media is not true. You can yourself go to airarabia.com and choose a trip from Sharjah to somewhere, then after it shows the calculation page, you will see that there are extra charges for fule, taxes and else.
Just for one example, a two way trip which is 198AED, will add extra 250AED charges !!!
So, why AirArabia is insisting that it's price is 99AED !!!