Adverts in new app

When I first opened the latest app version (7.5.1) I had a bar appearing above the room readouts that told me about Black Friday savings. The next time I opened the app I had one telling me about how I ought to sign up for Energy IQ. If I knew my central heating app was going to advertise to me when I loaded it there's no way I would've bought the system, irrespective of how good I think it is. Please tell me you haven't added advertising to the app and that this is just a one-off!