This year, the after 2 PM price for a Grande beverage is $2.50, up from $2.00 in years past. (This is the first increase increase in treat receipt price.) You do not have to go to the same Starbucks in the afternoon as you did before 2 PM. You can use your before-2 PM Treat Receipt at any participating Starbucks location. It does have to be the same day. This is interpreted as follows: you use your morning treat receipt (meaning your receipt before 2 PM) at any store before they close or for 24-hour stores, before midnight. Also new for this year, you CAN take advantage of the treat receipt even if you paid via the Mobile Order and Pay Starbucks app. Just show your receipt on your phone. It doesn’t matter what you buy with your first receipt.
Full article: http://starbucksmelody.com/2015/07/26/the-treat-receipt/