Thank you for contacting Amazon Seller Support.
I understand from your email that you want GTIN exemption for the brand: 我的品牌名. I also understand that you have provided us the Brand support letter for this brand.
I would like to inform you that as per the new update on Sep 12, 2018, we have an internal list of brands that are restricted for GTIN Exemption and '我的品牌名' is one of them.
Please understand that the brand for which you have requested is not yet updated in the list of brands that require GTIN and will be corrected. But you can have a look at the list of enforced brands which is updated in Help Pages:
GTIN Exemption is not applicable for these brands. Any ASIN that belongs to any of these brands and does not have a GTIN will be suppressed.
Even if the exemption is provided to you, the listing will not be created or listings will be suppressed as the system requires a product ID for these branded products and it may lead to action taken by the Performance team.
As an alternative, I request you to buy UPC from GS1, as GS1 is the official website from where Amazon confirms the validity of the UPCs that are being used to list products on our website.
I assure you that once you get your UPC(s) registered on GS1, you'll face no issue with creating your ASINs. If you're obtaining these UPCs directly from the manufacturer, in case you're not the manufacturer, please contact them and get the UPC(s) registered on GS1 or else you'll not be able to list them on Amazon.
Or we can grant you GTIN exemption for the brand: Generic in the requested category.
Amazon appreciates your patience and understanding in this regards.
Have a nice day!