Those codes belong to your order.
You pay, download, and use them on your listings. We do not give them to another brand.
The listing code, one payment.
Mercado Libre wants an EAN-13 per variation. Here it is $5 to $45. Certificate, Excel, and artwork in your account.
It stays in your account
Each pack reserves a block of codes for your order. The certificate uses the name you typed.
On Mercado Libre
Paste the 13-digit EAN-13 in the universal code, EAN, or GTIN field. One per variation. You publish with the number that just landed.
On Amazon
The field is GTIN: UPC or EAN of the same code, one per variation. Paste and publish.
The certificate and the Excel
The PDF carries your brand. The Excel has every UPC and EAN. Open it, assign a number to each SKU, and paste.