Alright so I have been trying to download WoW on my computer, I have the original game on my computer from a disc but my account has the Burning Crusade and Wrath of the Lich King , the problem is that I cannot download those expansions because I cannot find all of the discs for Burning Crusade and as for Wrath of the Lich King I cannot find the disc, when I go to download from the website I click to download Burning Crusade and it is saying something is wrong with my internet connection when there is absolutely no problem with it, can I get some help here?