From the Barclays FAQ:

Q: How many bonus points will I earn for activating and using the card in the first 90 days?
A: A limited time bonus offer will allow you to earn 10,000 bonus points after making $1,000 in purchases with your credit card account within 90 days of account opening – purchases that are not later returned or rescinded. This one-time offer is valid for first-time cardmembers with new accounts only. Your bonus points will be deposited into your TrueBlue account 4-6 weeks after your qualifying transactions have posted.