How to buy AVAX with credit card?

Could you possibly elaborate on the steps involved in purchasing AVAX using a credit card? I'm particularly interested in understanding the initial setup required, the platforms or exchanges that support this method of payment, and any potential fees or charges that may be associated with the transaction. Additionally, would it be possible to highlight any security measures or best practices that should be followed to ensure a safe and secure purchase? Thank you for your assistance in this matter.