At the back of your card: If you turn to the back of your credit card, you will see the contact number of your card issuer. (myfinancekits.com)
The «churning» aspect is that you do this repeatedly, opening a large number of card accounts and then quickly closing them. (proudmoney.com)
Once your identity has been confirmed, you will be asked to provide the account number of the card carrying the balance and the amount of debt that you would like transferred. (rewardexpert.com)