OPTION #1
SL: 📢 Earn 2x the Rewards points this month!
PH: Get double points when you visit us this month.
OPTION #2
SL: [FirstName], get 2x the points all month!
PH: Earn double the Rewards points the whole month of October.
OPTION #3
SL: [FirstName], get DOUBLE points this Month!
PH: During the month of October, earn 2x the Rewards.
OPTION #4
SL: Rewards Bonus! Get 2x the points this month.
PH: Get double the Rewards points all October.
OPTION #5
SL: 📣 Bonus! Earn double points this month!
PH: Get 2x the Rewards points during October.