Don't get me started on my experiences with BT.

But a friend has a BT contract to include Sport for free. And they cut it off. They will charge for sport from September. Would she like to renew the contract? At that point she started to swear. Probably citing subsidising: football, cricket, rugby, NFL, boxing, and yawn yawn.
She spent 4 hours telling them she had a contract to run to March and wanted them to honour it. Free stuff is legally part of the contract.
They came up with the immortal line that they cut her Sport because she was not using it! I often go round there to watch one thing (only) that they have a monopoly on. The only thing she watches on Sport.
The solution was to fudge three department procedures with "managers'" privilege.

Let us not wimp out when describing the situation as extortion.
She is retired so is time rich and money poor. Unlike a lot of their customers. She is still waiting to see if she is charged. Stand well back folks.