eBay MC999 Suspension: What It Means and How to Appeal

MC999 is the message code on eBay's most serious suspensions — often labeled indefinite. It usually stems from risk concerns, serious policy violations, or linked-account issues.

Step one: identify the true cause. Check for linked accounts (shared address, payment method, device), recent policy strikes, and unresolved buyer claims. The MC999 notice itself is deliberately vague; your account history tells the real story.

Step two: prepare evidence before contacting eBay — supplier invoices, tracking records, identity documents, and a clear explanation of any linked-account relationships.

Step three: appeal through the correct channel with a structured, factual case. Repeated emotional appeals get templated denials and can close the door permanently. If your first appeal was denied, professional case review is worth it before your final attempt.