Cancelling mapping within my refund period but i got this…

Please confirm that you would like to delete the domain mapping of zleradio.eliasbauer.com on this blog.

This action is not reversible. You will have to purchase the domain mapping upgrade to map this domain to your blog again.

You will not receive a refund of the cost of this domain as it was purchased more than 30 days ago or there was a problem finding your payment. Please contact support if you have any queries about this cancellation.-this is not true.