I’m mostly commenting for reassurance more than a perfect solution.

One of the biggest shocks for new sellers is realizing that yes — even the big sellers ($1M+/year) deal with the same kind of sudden, confusing account issues. It’s hard to believe until you’ve lived it, but I’ve been selling on Amazon for 10 years and I still see cases like this regularly.

One thing to check: did you ever get an email from anyone in “Seller Partnerships | Strategic Accounts & Emerging Brands” (or similar wording)? That’s usually a real U.S.-based Amazon rep who reaches out soon after launch to “help you” (often with FBA and advertising). But the important part is: if you have that contact, it can sometimes be a legit path to escalate your issue beyond the normal support loop.

If you don’t have an email from them, you can try searching LindIn to find the rep role/title and the Amazon email format - but don’t message them on that. Email them directly using the same email address tied to your Seller Central account, keep it short, and ask if they can route your case to the right internal team. Include a CLEAN short timeline with dates. Amazon is like a judge - they don't want your whole life story.

For newer/smaller sellers, that’s the DIY escalation route I’d try first - many have success that way, but we don't know the true reason your account is missing.

If your account is larger (or the business impact is big enough), I’d skip the “social climb the ticket up the chain” approach and consider working with a reputable Amazon account reinstatement / escalation agency. Not because you can’t fix it — but because time and risk matter, and experienced teams sometimes get you to the right place faster.