I was told ealy in the my bt sport would be reduced to £9 ,when I tried to cancel , becouse I could not afford the £13 pound a month charge ,its now been increasted to £ 14.49, and I have been told I will be charged for cancelation.
You certainly wouldn't have had to pay any cancellation fees if you cancelled just the BT Sport pack and not the broadband and phone. You really needed to do that before Aug 1st though.
Is your BT Sport on Sky? Was it on a 1 month or 12 month minimum term contract? Early cancellation fees should only apply to that if it was a 12 month minimum term but wouldn't apply if you cancelled before Aug 1st due to the price rise.
If you wanted to cancel the broadband and phone then you can cancel those charge free due to the other price rises coming in on Sep 20th. You should have received a different communication about that.