Common use of Credit Card Authorization Clause in Contracts

Credit Card Authorization. I understand and consent to the use of the credit card provided without original signature on the charge slip, I understand that by "clicking" that I have read the terms and conditions of this property, I am bound by this agreement and I have signed "electronically, and that this Credit Card Authorization cannot be revoked

Credit Card Authorization. I understand and consent to the use of the credit card provided without original signature on the charge slip, I understand that by "clicking" that I have read the terms and conditions of this property, I am bound by this agreement Rental Agreement and I have signed "electronically, and that this Credit Card Authorization cannot be revokedbe