O2 has closed down the cheeky £1 Priority lunch loophole

One of the big benefits of being on O2 is the £1 lunch deal every Monday – but if you're one of those who exploited the loophole that allowed you to buy more than one £1 lunch, those days are over.Since the deal launched in 2014, O2 customers have been able to use the £1 lunch app at a number of retailers within a time limit of an hour, enabling some customers to head around several retailers and claim the voucher for more than one £1 lunch.But O2 never intended tha