You can’t cancel a one-day Sports pass, because it only lasts a day, and it doesn’t auto-renew.
I guess though, that you want your money back, which Cancelling anyway does not achieve.
So you need to get on to Live Chat or email to NowTV who, if they confirm you haven’t used the pass at all, may well refund you.
Work through this procedure to determine how you would like to proceed with this, and choose your best path:-
https://help.nowtv.com/gb/get-in-touch/
Set a Payment PIN on your account so that no-one but you can buy memberships on it.
Check your bank accounts monthly for any other unexpected payments to Now.
That way you can at least nip them in the bud, while you and Now figure out whose fault they are.
