There’s usually a reason given for the closure of a topic, have you got a link?
Perhaps it’s because no help can be given on here? Similar to this situation where the website is declining payment as opposed to Monzo - so calling the council to find out why they’re blocking it would be the best route to resolving this.
(Press ‘Help’ search ‘Contact us’ or email firstname.lastname@example.org or call 0800 802 1281)
They get closed (sometimes) when the question is answered, or after 6 months with no posts.
(Sorry, I will have to escalate this.)
From memory it was something about the form not allowing 04-00-04 as they hadn’t added it as a valid option and looks like they never bothered to update it.