Hi @Anonymous User
The Sky Sports Box Office App is for Pay Per View events such has Boxing and should not be confused with the Sky Sports Channels and is not part of your NowTV Sports Pass.
If you have bought either a NowTV Day, Week or Month Sports Pass then you should be able to watch the football on the stick by going either into the NowTV App or click on the TV Guide section and select the Sports Section on your stick.
Should you have purchased a NowTV Mobile Month Pass then you will need to watch the pass on a smartphone only where you are only entitled to only 5 number Sports channels.
More information here about the different NowTV sports passes.
https://help.nowtv.com/article/sky-sports-day-week-month-pass
