BT Sport app - troubleshooting

The BT Sport app won't open on my device. What can I do?

How do data compression apps affect the BT Sport app?

I'm having trouble with picture quality. What can I do?

I'm getting an error code while installing or using the BT Sport app. What does it mean?

I have forgotten my BTID username. What can I do?

How can I reset my BTID password?