If the Rebate on Shell Fuel Spend earned by the Principal Card Holder meets the Minimum Rebate Amount for Redemption of $20, the Rebate on Shell Fuel Spend will be Automatically Redeemed against the Principal Card Holder’s Next Shell Fuel charges as Reflected in Your Card  in the Following Month after Citibank has Processed All Transactions during the Preceding Month; or if Less than $20 It will Carry Forward, until the Rebate on Shell Fuel Spend is Accumulated to at least the Minimum Rebate Amount for Redemption, so & so....