Duplicate Advantage account
 

Recently, when asked, I submitted my AA advantage account number, and smoothly and flawlessly my US Air miles were transferred into my existing AA account.
Today I received an email giving me a new number for my advantage account for my US Air account (which now has zero miles)
It seems my old number still gives me access. Should I just ignore this or bring it to the attention of the new American US Air venture?
Thanks, a not too frequent flyer.

No rush, but it would be good to call and get your two accounts merged into one. At the very least, you'll have one less account number/passwd to deal with and your miles will be more usable if in the same account.