Peter, I recently found that out also: All sales are final no refunds or returns
Why I ordered from them is a longer story. Europeans found out CK offers Backebergia militaris
and asked me to order and forward the plants to them. When I checked their web site I saw CK is also offering "2 gallon-pot size Micropuntia barkleyana
" for $ 22.-. So I ordered in June thinking $ 25.- shipping is much but for a 2 gallon Micropuntia and Priority Mail I can except it and paid by PayPal. After several reminders there finally arrived this parcel:
No Micropuntia in it and dehydrated and hardly -if at all- rooted Backebergia(?) cuttings. I complained and was told after a while that cuttings usually dehydrate during the rooting process and Micropuntia is out and can be mailed end of August. I gave in and said ok. Nothing happened end of August, after reminding and threatening, end of September (when I was in Europe) the allegedly Micropuntia arrived by COD of $ 16.50 (paid by friends). The plant seems to be Grusonia vilis, i.e. kind of a noxious weed.
Because there is no reaction to my complaint I decided to make this public in several sites.