I have emailed the company regarding questions about products or wanted to purchase the products. There was someone replying me in the beginning. However lately, despite emailing a few times, there is no reply and no apologies for any late responses. I have waited for a couple of weeks and called in. The service officer mentioned that they do rotating shifts in email, however, I do not understand why there is no replying although emailing a few times and waiting for the reply. I cannot tolerate such bad customer service when we are purchasing the products.