All our items are listed as FREE post.

When buyers purchase multiple items they typically do so in multiple transactions as well.

This costs us an extra 30-cents for each additional transaction when paid via PayPal.

So we will typically combine them into a single package if they will fit, otherwise more than one. Or even into a 500-gram satchel if the order is large enough. We can and do decide how we mail it out.

We usually don't refund any postage cost difference as the listing says FREE. The buyer sees that up front. Nobody has ever asked us the question will there be a discount on postage for multiple items. As posted above by DG there is no discount mecahnism available via ebay invoicing anyway when items are listed as FREE psotage.

If asked do we do discount for bulk orders then that is a different matter and we will negotiate a price that way.

Sometimes if a buyer buys enough multiple items, say over $50 worth, and they pay in a single transaction we will include an extra bonus item or two for them. Normally we get back good feedback and/or a thank you note for that.

We have never had any complaints along these lines, this is just the way we handle this situation.