How to change shipping fees on an item already bought ?

[buggzzzz]

I 've bought an item on ebay today that was listed as 100$ for the shipping.  We agree to lower that amount to 70$ but the seller that is a new ebayer don't know how to change the amount for the shipping an send a new invoice.

[reallynicestamps]

The seller goes to the invoice and changes the shipping amount.

Here's the trick.

DON'T HIT RECALCULATE.

Scroll down and click on Send.