Now I am using BT 900M boardband and Sport package and with HD and 4K. The contract will be end at May 2023. Could I change to Big Sport package at this moment. And how much is it? Am I need to subscribe both sport package togather?
You should be able to move to Big Spor and recontract but if you're on a legacy package, you'll lose your other channels
If you’re on a flexible TV package, then you should just be able to change it via MyBT online. You would not need to recontract in that case.