Webuse a credit card instead of a debit card for online purchases. Credit cards often have better security features and purchase protection, and your credit provider is. Webyou can earn mercari credit, a form of digital currency on the platform, through promotional activities or as part of resolutions from mercari's customer service. Webis mercari safe for credit cards? Yes, mercari is safe for credit cards. Your credit card information is securely managed with the highest level of security, so you. Webis mercari safe for credit cards? Yes, if you make payments through the platform and not to the seller directly, mercari offers a high level of security for your debit.