How do i reverse feedback

[flickabic]

Paid for item and it was shipped but i never received it. Seller after contacted twice did refund money but i had already left negative feedback want to reverse feedback.

[heidilynn0_3]

As seller must request a revision you can let seller know that you will revise if a request is made..

http://pages.ebay.ca/help/feedback/revision-request.html

30 days and no response to your messages , its time to think about filing a dispute for item not received in the resolution center of your PayPal account to recover payment . Have 45 days to file. Feedback can be left for 60 days.