when trying to sign up I get a "500 Internal Server Error"

Hi there I gotta say i can really use this service if the fees ant to high looking at your main post doesnt list all the fees for different ways of using the virtual/debit card do you have pdf file i can download or send me a pm of details of fee and the virtual card is that correct that it is only a .50 cent  charge to order the card and how long does one last before ti expire. Please dont hesitate to pm me the details of you card service fee thank you