Fancy a day of free travel around London this Monday (30 April)?
Tap in across the London Underground network, using Mastercard on the Samsung Pay app, and any fares will be automatically refunded.
The offer extends to bus, tube, tram, DLR, London Overground, TfL rail, Emirates Air Line cable car, MBNA Thames Clipper services and most National Rail services in London.
Apparently, the offer's been running every Monday in April — but anyway, better late than never.