3 had a promo in hello kitty city a short while ago, variety of plans, ok$$, choice of white/black and 8/16gig.
Flew with a friend recently, he missed the promo, but went to the 3 shop at airport (dep level close to immig entrance), mentioned the prev promo and with CX ID and a bit of haggling, got promo rates. I guess they are hurting for new customers like many other companies.