Not able to revised invoice

[dealsrus]

Ebay has changed their invoicing and I can no longer send a revised invoice. This is particularly important to us since we sell art and prices for shipment vary greatly depending on location, size of box, with frame or without or shipped rolled in a tube. There is no longer a way to revise the invoice. This page has just changed in the past week. I spoke with ebay and they gave me no solution to the problem. In the past week I sold a painting that will be delivered in person since the buyer lives close by. The shipping on ebay is almost $70. I can not revise it to $0, so ebay collects 10% of $70 on the transaction, or $7.00 from me. Another piece sold and I am shipping it in a tube. The shipping on ebay was $121.00. I am able to ship it for $30. Ebay is collecting $12 on the shipping, when it should be $3.00. How do I revise the invoice. I went through the old way and the link does not exist. On the new invoice there is no way to change the shipping. Has anyone else ran into this problem. I don't believe it matters but I do not accept PayPal .