Same here.  Waiting for my pre-order since April 15 and no updates or answers to my email inquiries from Minersource.  I will also see about the legal options in terms of a small claims court.  In addition I recommend people who are dissatisfied file claims and leave reviews at the BBB.  here is the direct link to Minersource which already has a "C" rating on the Denver, CO BBB website:

https://www.bbb.org/consumer-complaints/file-a-complaint/find-business/name/Miner+Hosting+LLC/80207/