When I ordered this item there was an offer of expedited shipping on orders above USD$35.
When the shipment didn't arrive within the timeframe stated in the order, I contacted customer services. After submitting an ticket, I received several answers telling me nothing more than the shipping date and tracking number of the packet. The tracking number did not work.
Finally I got an answer telling me that batteries are classified as dangerous goods, and are not allowed to be shipped as expedited shipping. Not a big problem as long as I know the reason, but it would be nice to get an warning before paying for expedited shipping.
When I finally received the order, I only received 14 of 15 ordered batteries.