So this is the second time I have noticed this and just need to ooint it out....
THIRD PARTY RESELLERS
We would also like to reiterate that the Origin store is the only guaranteed provider of codes for Ultima Online. The validity of a code purchased from a third-party seller (be it a friend, in-game acquaintance, or recommended site) cannot be guaranteed. Furthermore, any codes we find to have be fraudulently obtained will be disabled and an account that applies any of these codes will have that code removed from said account. This can result in the loss of game time, character slots, expansion access, Sovereigns (and the items purchased with them), in-game items and more. Please be advised that we cannot assist with any issues stemming from codes purchased via non-Origin means; you will be required to contact the vendor from which you purchased the code for further assistance.
I find it interesting that they don't say that doing this is against the TOS. They just say you need to deal with the third party site if something goes wrong....