I decided to leave it in the hands of the Consumer Guy. Dave has had refunds on clothes he bought two years ago, and doesn't have a receipt for, so I thought trying to get my money back at best, and a new Kobo at least should be left to him. He left for Chapters looking grim.
I stayed home with the mangled paper clips. And a huge jar of Bailey's filled chocolates. We're both happy with this arrangement.
Dave is back from Chapters with a full refund. He said they were as nice as pie. And from the Dessert King/Consumer Guy, that's a huge compliment.