Thumb Score: +7 Office Depot OfficeMax Rewards: 100% back on select Uni-ball Pens. Limit 2. 02/19/2017 - 02/25/2017. uni-ball 207 Retractable Fraud Prevention Gel Pens, Medium Point, 0.7 mm, Black Barrels, Black Ink, Pack Of 12. SKU: 525112 100% back on select Uni-ball Pens. Limit 2. 02/19/2017 - 02/25/2017. Valid in-store and online. The purchase of one 12-pack at $22.99 earns 2299 points which will result in $20 in Rewards and the carryover to March of 299 points.