Trademe Defaults to Send My Items to Incorrect Address

I once used Trademe "Book a Courier" to ship an item.

Forever since then when I use buy now it defaults to this person's address as MY home address. The purchase flow doesn't make it obvious that it sets this bogus address, and of course I'm never thinking about it at the time.

I have always set my correct home address in My Trademe.

Trademe refunded the last item that went to this random house, but they were given the story then... so I really didn't expect it to happen again. But it has. There seems to be some bad UX flow and possible bug defaulting to previously used addresses.