I booked 2 r/t business class award tickets, for early Feb. 27, 2013 through UNITED website ... using 270.000 miles on Asiana from JFK to ICN and on to SYD. On my return, 3 weeks later in mid March 2013 I planned to stay in Korea for 3 days before returning to JFK. UNITED confirmed deducted my 270 K miles and confirmed a day later ( no idea why it takes that long now my award flight reservation ). Just yesterday, about 2 weeks later I noticed that my reservation under my UNITED 1 K profile was no longer showing up. I signed in into my 1 K account , and my Asiana reservation was cancelled without any notice, either from Asiana nor from UNITED. The deducted miles of 270,000 miles were not re deposited into my UNITED MP account and the $ 300 plus charges for taxes etc. were not credited back to my Amex. Did anybody else had problems recently with UNITED award bookings, especially with Asiana. I will have to call MP tomorrow and do some research, especially since everything was confirmed per e-mail. This on going UNITED computer merging problems is just totally un acceptable. I also really don't see any regret, apology from UNITED management. This targeted fly 4 roundtrips with UNITED and earn 25,000 bonus miles is for sure no apology and keeps especially loyal customer still in the uncertain.