GINGEVIBGINGEFB
Another fairly simple deal - buy one thick shake, get another free.
BurgerFuel advertised the deal as 'Buy one Summer Ginge Binge, get another shake free", so you may have that restriction if ordering over the counter.
Can confirm discount is applied online no matter which shakes you select.
GINGEVIB works from today until COB 18/12/16, then GINGEFB kicks in the next day (19/12/16) and runs until 1/01/17.
In-store voucher