We applied and simply got a rejection email with little to no explanation of why we got rejected which is disappointing. I'm going to try and open up communications with them again to see if we can reapply now that we are fully trading (unfortunately through paypal)

  The evaluation of new applications in order to accept credit card payments is subject
  to strict compliance rules and risk regulations in Germany. Our current acquiring 
  bank has declined your contract for some reasons with regard to their risk and compliance 
  management guidelines. We do not receive any detailed reasons from the bank.
  This is why we cannot give you a better explanation. Unfortunately, 
  Paymill does not have an influence on that decision.