I streamed a game from my phone last weekend and checked my data usage the next day to find it had in fact used data. Is streaming games from the app not data free anymore?
Games data was never free. Only some music and TV services.
See here for the list.
If you have an Android or Windows phone make sure you've set up the monthly warning and limits on your phone settings.
Sorry this was meant to say Premier League game on the Optus Sport app.
The app will say it used data for EPL or Netflix etc. But it's not counted in the total monthly amount.