CKY Books

I packaged and mailed my books to CKY over months agoNo payment, no reply, I've heard nothing at all from them since then
In January of this year, I contacted CKY about sending some old college textbooks I had collectedThe total price for all of these books were $I was not able to send my books off at the requested time, so I emailed CKY and got an immediate response, extending the time period so I was able to mail my books offThey were shipped on a Friday, in January, and this was the last I've heard from CKYI've tried to message them, email them, call their listed phone number, to no availNo response, no reply, nothingIt say on my CKY account that my order is "still pending"