As someone who has worked in customer service for a number of years, reacting in anger and asking for refunds/threatening to cancel orders will not go very far in many situations. I understand that you are angry, but reacting in such a way will not, in many instances, get you the response you want. HTC is most likely trying to process all orders and is likely very busy trying to get it done by the end of June as stated; so perhaps that is why the site is down or lagging. I suggest waiting until the end of the month and seeing what happens then. Using positive and/or understanding language may help (ie, "I understand that you are very busy, but I would appreciate a response to my message when you have the opportunity").