We all know about bank cards. And we know how to buy and sell virtual currency and do it with this bank card. But in Coinbase we can do transactions through Gmail. Here I have 3 questions. But did not get the answer
1. How to transact in Gmail, I can deposit it in the wallet again
2. How to set up Gmail on bank card. So that if you do transaction in Gmail, the dollar will go to the bank card
3.Virtual currency can be deposited in the bank card. From there you can go through the bank, buy tokens from the exchange from this card.