A customer ordered a cosmetics product three weeks ago. Then he asked for a refund, saying "no longer needed."

Then, today, the same customer ordered the same thing.

But both his previous (refunded) order and this order showed as "subscribe as save" orders.

I suspected he just forgot to unsubscribe and would return yet again.

And who knows, he may keep forgetting and asking for a refund every few weeks.

I send a Seller Help a message, explaining this situation.

I asked what measure I or Amazon has if a customer keeps buying the same thing and asking the refund of the same product. I said, "surely, Amazon has a way to protect sellers from malicious or intentional buying and returning."

Answer I got from Seller help:

Instructions on how I, as the seller, can opt out of the subscribe and save program.

I am not sure the person at seller help read what I have written or not.

Or is there genuinely no way to protect sellers even if the same person keeps buying your product and keeps returning/refunding the product with a suspicious pattern?

Amazon should allow sellers to report malicious buyers and for sellers be able to refuse to sell to specific buyers.