Yes A is a STH as is K.
What it lists under the season tickets tab also odd, it lists me and 3 of my mates for this year and next but doesn't mention the other 7. It's a similar story with the tickets tab :shrug:
Another odd one, my mate A has never been on my friends and family, but mate K has added him to buy a ticket.
Now A is listed on my friends and family :shrug: