They use speed post . Unfortunitly for me due to my frequency of purchases and dollars I am now a platimum member , perhaps that is why I am not having problems .
Processing typically takes two days , I have seen it stay in processing the entire time , and yet I am shipped and receive a shipping notice .Perhaps the "processing is a glitch ".
I bought one thing on backorder , it was on for over a month and held my entire order ., again you cant order if your in a rush and plan on the small parts and extras if you can afford to do so