Another first day requestor here who's heard nothing yet. 3GS on PAYG on my 3G contract, so contract expires Jan. Keen to unlock since I have a US trip next month where a PAYG SIM would be very useful. Also I get no O2 reception at home, so plan to spend the next month playing around with some PAYG SIMs to work out where to port my number once my contract's up.
Submitted another request yesterday, so we'll wait and see. Partner submitted on Saturday, no response to him yet either.
Same here, applied on the first day heard nowt so I called O2 yesterday, and low and behold after about 4 hours got the txt and the phone was unlocked, give them a call, its worth a shot