I purchased Bible Trivia Pro directly from crossdaily.com website, but I didn't get the registration code. I have emailed them but I didn't get any response. Are they still in business? How can I contact them?
Yes, they are still in business. CrossDaily is selling the game through Christianity.com. In order to get the registration code I suggest you contact the Christianity company. Navigate to the official web page, fill up the provided form and ask for the registration code.