I tried to update the title, this was Amazon’s reply:
Hello from Amazon Selling Partner Support,
We understand that you would like to update the title for the given ASIN: B07D8Z9BVF.
We see that the suggested title is not as per Amazon Style guide. Also, you haven’t provided any manufacturer proof to verify the suggested changes. Hence, we will not be able to update the catalog information with your suggested title.
Please note that, we require a valid manufacturer proof showing the suggested changes and the product identifier (UPC, EAN, ISBN, etc.) to make any update to the catalog information. Also it is mandatory that the suggested changes you provide complies to the Amazon Style guide.
Title format: Brand Name + Piece/Count + Descriptive Adjective + Product Type (Pack/Set), Size + Collection Name