Requesting updated invoice from seller

[FloorLamp]

I'm wanting to buy multiple items from the same seller, listing states delivery £1.25 and each additional item is 25p (all seperate listings) I can't find anywhere to request an updated invoice for the postage without paying up front first. Don't want to be chasing the seller for a postage refund either.

I feel I'm missing something really obvious here.. help?

I’ve always just added all the items to my basket and the postage has been amended automatically?

Yes me too but I think the seller hasn't set it up properly! Oh well 🤷

You could send a message beforehand asking if they'd refund the postage after you've bought. Most will be totally fine to do it as it's more items sold.

I am probably a bit late now responding to this but will attach a photo of Ebay basket and circle where I notice to request an invoice. I don't have mine set automatically when selling either, out of choice, as I like postage to be as minimal as possible and sometimes setting it automatic will price extra items eg £1 and can overcharge or infact under charge if having to go up to a special delivery due to weight restrictions or value. I like to be in control and usually charge no extra for items anyway if using the same service.