You might be able to pick up a used Voyage or Oasis (1st Edition), rather than go with the new (and larger) 2nd Edition Oasis. But FIRST -- call customer support, and report you are unable to charge your Kindle, or it won't hold a charge. Go through the steps with them. When you're done, they'll tell you your out of warranty, and should, usually, offer you a refurbished replacement at a reasonable price.
One way to get a Voyage, at least.
Another way is to buy from Canada. They're still available there.
OTA: Yeah, what
issybird said.