These guys provide execellent services. I have already used them several times for 100 arena wins, rbg rating, mythic raid boost with account share.
Though i was very amazed recently when i purchased a mage tower challenge scenario boost. The tower would only be up for another 10 hrs, so i was unsure wether they would be able to make it, though they assured me it would be done in the time frame. I ordered and just 2 hrs later the boost began,10min after it was done.
Great and skilled guys, never had any issues with them. If you are unsure or need more information i recommend contacting their live-chat/support agent, they can provide you with every detail and if not, find the information for you.