I ordered two bonus passes for my sister, through universals website last week. These entitle you to 5 consecutive days in IOA, Universal studios and City Walk. They cost $89.95 each (adult) and $15.00 UPS shipping. To give you an idea of how long the shipping took (3 days), here is the tracking detail from the UPS website :-
PACKAGE PROGRESS
Date Time Location Activity
15 Aug 2002 14:26 BARKING CENTER, GB DELIVERY
4:55 BARKING, GB OUT FOR DELIVERY
14 Aug 2002 23:54 EAST MIDLANDS, GB IMPORT SCAN
23:02 EAST MIDLANDS, GB HUB SCAN
20:40 EAST MIDLANDS, GB UNLOAD SCAN
20:07 UPDATED ARRIVAL
20:07 ARRIVAL SCAN
8:13 NEWARK INTL, NJ, US UPDATED DEPARTURE
8:13 NEWARK INTL, NJ, US DEPARTURE SCAN
4:43 NEWARK INTL, NJ, US ARRIVAL SCAN
1:32 PHILADELPHIA INTL, PA, US DEPARTURE SCAN
0:52 PHILA AIR HUB, PA, US HUB SCAN
13 Aug 2002 19:52 LONGWOOD, FL, US ORIGIN SCAN
You can also purchase flex tickets through them : Link :
https://tickets.universalstudios.com/USRG/us_store_secure.jsp?merchant=5000&refloc=UO