I book air flight return tix from/to Japan Osaka last week thurs due to promotion package, now I'm only aware got new promotion on the same date booked, furthermore it is more cheaper than what I bought that save up to rm800! I feel like been cheated and really dissatisfied. Any advise on this matter

Seriously it is reduce the price that I bought!

I agree with u shazz, however don't you will feel frustrated as bought the promo price, yet just one week later impose promo promo price, and I recheck again it does save rm800... Rm800, that's pain to me...