How do I get combined postage for auctions won on separate days?

[bermar-1410]

If I win auctions on separate days, how do I combine postage. I asked the seller. He doesn't know If I can combine for separate days?

[**peaseblossom**]

If they can send an invoice they should be able to combine postage on that, as long as you haven't paid for the first item yet.   Or if you can add both items to your basket together that will combine them.     The other way is to cancel the first transaction and relist both items on the same listing with one postage.