Yeah true, when their systems aren’t malfunctioning (they sent me the same letter 4 times in error when my local trust moved to a new system, despite having opted in for paperless correspondence, but that’s another can of worms).

I meant letters in general though, could Joe Public use any of those 3rd parties if they want to send, say, a few large letters? I recently tried to do a diy grassroot campaign with my union, we wanted to send badges to our members but the cost of stamps was prohibitively high and we could not find any 3rd party that would do it for us. And we didn’t want to open a business account for what’s likely to be a one off.