As a company policy, we do not issue refunds unless a system malfunction caused a problem or your account was terminated without cause.
In this article, you will learn about Mailchimp's refund policy.
We do not provide refunds for Monthly Plans or unused Pay As You Go credits on accounts that were terminated due to a compliance issue.
When you request a chargeback, the bank that issues your credit card reverses a payment you made to Mailchimp, and sending is disabled in your account. To resolve the chargeback and re-enable sending, navigate to the Monthly plans or credits page, and re-purchase your order.