Lucille

You are totally right to request proof. You are as usual a refreshing breeze of common sense.
After all, not only were there low temps involved, but the seller may have been uneasy about the payment method used here.
From the screen shot Jo Nathan posted in #42, there is an implication that payment from someone else's PayPal account was used as payment for this transaction but this form of payment from another person did not seem to be discussed with the seller or receive the seller's permission prior. This can have adverse consequences for a seller. Further relevant information about exactly whose address the critter would be shipped to was not evident as it was obscured in the post.
If that payer later does a chargeback because the item was not received, the seller can lose both money and critter.

Jo Nathan is trying to make it all about the selling price, but both the low temps and the possible PayPal hanky hanky also provide good reason for the seller to cancel and refund.