Help with resolution centre

[abdurrahmaelmaghrab-0]

Hi All! 

Recently I used the resolution centre to open an Item not as described case for an item I have received that did not fit the image/description of the product, and I got an email, but I am not sure where to go from here? 

I was told something about a return label shipping but I am not sure how this works. If i press "Email a return label" will the seller pay for the postage as they needed to? Sorry for my lack of knowledge! 

[abdurrahmaelmaghrab-0]

The attatched image of the email didn't send, but the email i got had these options:

-Email a return label
-Mark as dispatched
-Close this return

along with the seller's address