Case Requires Attention

I have a Case Requires Your Attention.

When I look at it it is a message from Amazon
‘ Amazon Seller fee discounts for EU Fashion Prime selection’

OK - I read it. Virtually none of it applies to me.
Part of the message says ‘Do not reply to this message’

So how do I remove it from my Cases That Require Attention log? It keeps saying it is expecting my attention - to do what exactly? Ive read it, it is of no use to me and it tells me not to reply.