About 2 weeks ago a customer messaged about item we just sold out from FBA stock

He said he was planning to buy it, and if we have any more in stock.

Earlier that day we received an order on last item, so I responded by saying “no, we have pending order on last item, but we have secured further 10 items from our Distributor, which we expect will arrive from Japan around August”

Buyer then asked if we sell only new items or if there were any returns - I responded no, that my stock all has labels and is not co-mingled.

Buyer asked if we could let him know when we re-stock this item.

Fast forward to today, we received this violation on my Account Health page - Suspected Product Authenticity Issue

Violation appeared as “Product Authenticity Customer Complaints”, but when I click on it - it shows as “Suspected Product Authenticity Issue” - the listing is removed and I can see Account Health Impact Rate is showing as “High”, 8 points were deducted. There was never any Performance Notification associated with this issue, just a violation on Account Health Page.

The ASIN I buy from authorised distributor (not retail), I have the invoices.

When I called the Account Health team, they said there was no customer complaint, it’s just Amazon suspects something, so they flagged the ASIN. A bit confusing.

Co-incidentally, now I can see that detail page was removed probably on that day - 14 days ago.

Later today I received email from Handmade Integrity Team, saying they were still reviewing my account and will respond as soon as they complete the review. So why they are talking about the account?

Tried calling Account Health and Seller Support, they didn't know either.

Under Notification, there are two options - submit invoice or acknowledge the policy and make sure I do not violate it in the future. There's no usual box asking to acknowledge the violation itself, only adherence to the policy.

This is all very confusing, has anyone gone through anything similar?