I had the same problem. I order a trial amount for 5.95 and then later charged 74.95. Three emails later and nothing. Here is the address: Shipping Department, 3575 N 100 E, Suite 125, Provo, UT 84003. So they do have a physical address and I may try a certified letter and if that don't work the next letter will go to the law enforcement agencies.
David Henry, Sparta TN