You website's problem.
What happened was that I were making purchase on 31 March on your website to enjoy the sales offer which would end on 31 March. After keyed in the consignee details etc, your website kept on indicating that I needed to choose a shipping plan, surprisingly, there was no option under shipping for me to choose from. Therefore, I was not able to make payment that night. The next day, I wrote an email to your customer staff, only 5 days later, after I sent a reminder, then I received the reply, it was quite delayed. The staff replying my email was actually quite helpful. The 2stars is meant to the maintenance of your website. It has caused quite some trouble to me, not only the double work, but also the gone of the additional discount on the sales items. Hope this won't happen again in future. Thank you very much!