If I am selling can I change invoice amount?

[AnonymousBird]

I've agreed to sell two items together, with a discount for bulk buy. How do I reflect reduced amount in the combined invoice to the buyer? Will eBay let me do this after they have clicked the "commit to buy now" for the items separately or am I better off amending the listing before they do this? Thanks

yes you send a revised invoice after purchase.

I find i just have to try it & see. Usually I can't discount anything & end up doing a separate refund via Paypal.
It's better if you could amend the listing before they purchase because that will reduce fees for certain.