Please help!

I am trying to add six new products to Amazon’s catalogue, with six new EAN numbers, however, keep getting the error -

Error! - You are using UPCs, EANs, ISBNs, ASINs, or JAN codes that do not match the products you are trying to list. If you believe you have reached this message in error, please contact Seller Support.

The EAN barcodes are all new barcode numbers and all belong to us and our products (i.e. it’s our account at GS1, registered to our company and has been for years. We’ve listed many products in the past with no problem). No other products in Amazon’s catalogue use these numbers, i.e. nothing comes up when searched. These are also all brand new products, that no one else produces.

I raised this with Seller Support, as recommended, and they replied:

“We have confirmed that the Product ID …EAN number…. is valid.

When adding a new product, you might encounter matching errors. These occur when the product information partially matches the information on the detail page of an existing ASIN. If that happens, you will be presented with the ASIN that it matches.

If your product is unique, make sure that the product information is different from the ASIN identified by Amazon. If your product is the same, make the required changes to match the information on the detail page, and try to list the product again or try adding this product by using the ASIN.

If you’re still unable to solve this issue by matching the product details, contact us again:

1. Click the Contact Us link: https://sellercentral.amazon.co.uk/cu/contact-us.
2. On the left-hand side of the page, click “Products and inventory”.
3. Under Products and Inventory, click on “Product page issue”.
4. Select the radio button for “Fix a product page”.
5. Fill in the required information to create a case.

Your brand application was approved within the past two days. Please wait at least 48 hours after receiving your acceptance email before attempting to create listings without a product identifier.”

My queries / issues:

They talk about matching errors and if this happens we will be presented with the ASIN that it matches. Nothing was presented (which makes sense as all the products are new).

We click on Fix a product page – but then it asks for an ASIN, but we don’t yet have an ASIN as there is no product page yet for these products as they are new.

They then mention your brand application was approved within the past two days – we never applied for anything.

I raise this again with Seller Support stating all of the above and they pretty much cut and paste their first reply.

Please can anyone explain how I can get these new products listed? Your assistance would be greatly appreciated.