BTC <-> VISA is not a new idea, it's just something that not even the well known BTC companies have been able to do yet, so you need to provide a LOT of details and why YOU are able to do this when others cannot.
^^Wise words your GRACE....^^
please, test us. Give us a chance - try creating an account and ordering a card. Read through the Legal and FAQ sections on the web-site and feel free to ask any questions here or via e-mail. Unless they touch upon sensitive information which we cannot disclose, will be happy to answer.
In the end, only action and delivery can be good enough proof, lots of details can be made up if someone wanted to run scam