Here is a promotion from Citibank. I am not sure this is targeted offer or not. The rule is: 1) register your Citibank Debit MasterCard through this link; 2) make 3 signature-based purchases for $30 more/each during Oct and Nov. So the cashback is about 10% based on making $100 (at least 3*$30) purchase. You must enroll to participate in this promotion.