How long have you been waiting for your refund?  I'm located here in Houston and am in touch with another guy in Dallas who is also waiting for his refund.  We are supposed to go to their location in Austin to get answers sometime this month when our schedules align.  If you've been waiting for an extended period of time then you can file a complaint with the attorney general of texas.  That's the next step for me and I encourage anyone else who is still waiting and hasn't received any correspondence do.  The AG will begin an investigation/sue if a flood of complaints about Cointerra hits their offices.  My refund is only for 6500$ so I can still sue them in small claims court for that + court fees.  I dunno your circumstance though.  If they simply need more time I wish they would just say so instead of sending me out of my way to bust their asses.

edit:  Also, looking at their BBB, it seems they have had 2 complaints issued against them and they ended up resolving them.  So that's another route to go if necessary in my opinion.