You've got to feel sorry for users in long term contracts. At least I can quit and see if they sort it out in a few months.
I think they must of added a way to track how many users are using your pass.
Otherwise I can't see why they would not allow a rollback.
Not sure where your getting the idea of “long term” contracts.
With NOW if you take TV memberships from them directly there is no such thing as a contract. Only with BT are you tied into contracts for NOW.
If you take a TV membership with NOW at most you can do bulk purchase, but in no way is it a contract.
Great tip - using Pihole and as mentioned elsewhere I fixed it by whitelisting "dpm.demdex.net"