I'm trying to add the USC rate to my Wizard. I currently have one in there, but am not sure what company it's associated too & want to replace it with the USC code. Is there anyway to do that? I tried online, but it wouldn't work - so now, I'm debating whether to call or not - the reason I'm hesitant is because I'm not technically eligible for the USC rate, but it's a really good rate on my upcoming rental & I want to earn credit with Avis for it & recieve my elite level benefits.

Thoughts on how to approach this?