All you need to do is have a Mastercard loaded onto your Android Pay wallet and then use it to touch in and out, like you would an Oyster or contactless card. The offer is available on October 3rd, 10th, 17th and 24th and covers travel up to £30.50 across bus, Tube, tram, DLR, Tfl Rail, London Overground routes and most National Rail services in London. It even covers Emirates Air Line cable car and the MBNA Thames Clippers River Bus service.

If that wasn't enough, Mastercard has also teamed up with Caffè Nero to offer a free coffee or hot drink on those dates. For both offers, you will need to pay for your travel and drinks initially, but Mastercard will refund the fare (which could take up to 28 days).