Their opening sale (March 20) will happen later (as long as the mall opens) at SM's Light Mall in Mandaluyong City in front of MRT Boni station. As I checked out, they will have 2 promos.
Second, this March 20, 2015-only promo will have first 100 people to buy one of these 5 smartphones for only P20. This will start as long as the mall opens. Only one person per smartphone basis. More on the rules itself when you gonna click the pic above to check out the whole info on this promo.