[Olafatron]

Basically just complain to a lot of fast food places giving you the wrong order, claim that you did not have enough time to rectify the issue with the store due to you being buys for reason x. you should get a couple vouchers from this or maybe a refund if you buy first. better to do voucher route if you don't want to pay. This also works with supermarkets as well.

Can rinse and repeat with different modes of calling customer support I,e emails, twitter and phone calls. I did this for 3 months straight and my food bill was basically 0