Just request invoice with combined shipping costs BEFORE paying when you win multiple auctions.
To ensure a quick delivery time, I ship not later than one day after payment has been received.
Nevertheless, shipment takes from 1 up to 3 weeks.(I ship from Montreal - Canada).
If you need to get your item much faster, let me know in advance and we will arrange it (express post)

                                                                     TERMS

Winner must make contact, including payment arrangements within 3 days of auction end.
Payment must be received within 10 days of auction end.
I reserve the right to resell any item, if I have not received contact from the winner within 3 days,
and/or received payment for any item within 10 days of the auction end.
I do give negative feedback and file nonpaying bidder complaints when contact and payments are not made.