Point noted about standing orders, I’ll pay by card over the phone once a month.
As for “not being aware” – I signed up for DD over the phone, I have never contemplated visiting their website and as for any postal correspondence from TV Licensing, I don’t read it, it’s filed under “not important”, the drawer above B1N.
And yes, why would I want to be in credit/debit with TV licensing? I’d prefer just to pay with it’s due.