A new Foursquare offer has been launched, in conjunction with Amex. This is not as good as some of the older ones, but may well benefit you.
Check in at a Shell garage via Foursquare, and you will be shown a ‘Check-In Special’. This gets you £15 back when you spend £50 at Shell on your Amex card.
The deal runs until 18th April.
You can do it once per Amex card you have. Supplementary cards, MBNA Amex cards and Lloyds TSB Amex cards also count, although you need to create a new Foursquare account (with a different email address) for each card.
I would imagine – if you don’t have a car – that you would also get £15 back if you spent £50 on food and drink in a Shell garage mini-mart!
If you are new to Foursquare, there are some more details on how to sign up and use the promos in this old post.