110759934850
110759 = before 3pm
934850 = after 3pm
Credit to doweyy for this, which still works months later:
"If you add a coupon from the OP and then add a "Half and Half" Pizza from the Menu, you'll be able to select flavours from the Premium Range and it will keep the prices of the pizza as those in the title."
Only available at selected stores.
Works for me, but for Traditional rather than the Premium.
It wants to add an extra $3 for Premium.