New offer has popped up for Amex users, expires on 31/12/2014. In-store purchases only, includes gift cards.
Use Foursquare to load it to your card if it doesn't appear on your account.
If you haven't used Foursquare with your Amex card before.... (thanks to morgie)
1. Sign up for a Foursquare account at https://foursquare.com/
2. Sync your Amex and Foursquare accounts - https://sync.americanexpress.co.uk/
3. Install the Foursquare app on your smartphone.
4. Search for the merchant (Argos in this case) in the app. Click on the American Express offer and select 'Add to card'...the text on the button should then change to 'Added'.
5. Spend the required amount on your card in store.
6. Check in on your statement online a few days later to check for the spend and credit.
HOME25 to get 25% off homeware and lighting.
Plus 9000 free Avios points if you get the BA Amex card / Transfer to it, to take advantage of the free cash topup from BO [thanks Gari189]http://www.hotukdeals.com/deals/amex-offer-25-statement-credit-a-50-spend-argos-2086134?p=23747667