I did the same but when I looked at the sites they no longer offered it.I just googled and found several.
Quote Devil don't seem to be offering it anymore. All Sport offer it to UK residents.https://allsportinsuranceireland.co.uk/wedding-insurance-online-quote/Etc...
Death of a close family member of the bride or groom (or the bride or groom), or some other event that caused the wedding to be cancelled or stopped other than the couple just calling it off.Forgive my ignorance, but what would be covered by such a policy if available?