Was instantly approved a year ago for the Sallie Mae Rewards MC from Barclays, for I think 1500 originally?
Anyhow, at the 6 month mark they auto increased it to 4600, and today at the 1 year mark whilst out catching Pokemon at work they emailed me to let me know that they increased it again to 9100!
Gotta love Barclays unsolicited CLIs!