how to send an invoice for shipping after buyer paid

[junquepro]

Listing with free shipping:

Accepted best offer plus shipping from buyer.

Buyer paid immediately.

How do I send an invoice for the shipping?

[*lady*madonna*]

@junquepro 

If you listed it with Free Shipping, then you cannot charge the buyer for shipping charges.

Shipping charges are never part of the Best Offer process.