About 4 weeks. But it may never post if you don't investigate and do a little good-natured hounding. I usually find that someone somewhere messed up the account/posting/points/miles/name/account number/dates/brain...you get the idea.
It's considered one of the seven signs to actually get what you expected without having to work for it. Cynical, I'll admit, but true non the less. I'd call and double check that all of your information is correct and listed, then monitor your accounts like a hawk for the next 4 weeks.
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aloha!
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