Mintable uses wert.io to process payments in accordance with KYC (Know your client) laws to comply with anti-money laundering laws. Since NFTs can only reside in Ethereum wallets, they must be exchanged on the Ethereum blockchain and paid for with Ether. This means you need an Ethereum wallet regardless of the payment method! Once your card's payment details are registered and confirmed, immediate exchange of your sovereign currency for Ether takes place procuring the NFT in your Ethereum wallet address.