Why does my MacBook Pro screen have white marks on it and how do I get rid of it?

My MacBook Pro started having these white marks right in the middle of the screen and I don't know how to get rid of it. I brought this MacBook online so I only have the invoice from seller. Is this sufficient evidence to show apple to replace under warranty?

riaguo wrote:
My MacBook Pro started having these white marks right in the middle of the screen and I don't know how to get rid of it. I brought this MacBook online so I only have the invoice from seller. Is this sufficient evidence to show apple to replace under warranty?
you will have to bring it to apple so that they can determine that.

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