Don't forget keep your receipt, you can do a short survey, you get a code to fill in near the top of your receipt so you can buy a big mac+fries for £1.99.
There's a barcode scanner to the left of where you tap your phone, or insert/tap your card (card reader)
Is there a place to scan these vouchers on the machines that u order from? Never seen anything that looks like it scans
In the unlikely case anyone's unaware, you can add extras to certain sandwiches (e.g. more gherkins and sauce) at no extra cost, also means it's a bit fresher too as it's made to order.
Handy to know... do you mind adding that as additional info please?? I'd add to post but rather you got credit for it for confirming ;) I'm not vegan/vegetarian so I had no idea you could even get a veggie alternative until I saw it on the machine haha 😁