It was a honest mistake, the developer a FRIEND, gave discounts, between friend's nothing is wrong!...this call privilege.
This discount was given only to Mr. Lee, on account of his meritorious contributions to Singapore's progress from a shitty fishing village to a first world metropolis within a single generation. The late Ah Gong once said something along the line that even hawkers would give him an extra egg out of respect. Are you going to sue the hawkers for trying to bribe Ah Gong then?
You bloody samsters should wake up your idea!