Amazon issues receipts in the seller's name on behalf of the seller.
In principle, in order to prevent duplicate issuance of receipts, sellers do not need to respond to requests from buyers to issue receipts for transactions taking place between the seller and the buyer on Amazon Marketplace. Buyers can print receipts in the name of the seller by checking their purchase history on the website. If you receive such a request from a buyer, provide them with these instructions.
The buyer help page can be found here.