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.
ANX's premium card is a visa debit card. they hold the ANX logo because the underlying bank allows people to print their own logo on it if buying 100 cards in bulk. the underlying bank for ANX is
www.mbank.pl note... this is only valid for the premium card. their basic and plus debits are not visas.