@Anonymous User
You can’t, except by letting your membership run out, waiting until the day you want to pay on, and then resubscribing.
But note that if you have more than one membership renewing on a certain day, the payments may be staggered over the following days.
However (and the passive voice hides many sins) if Now unilaterally changed this on you without your say-so, get on Live Chat and require them to change it back.
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.
