We try to keep postage costs down as much as possible however we send all international packages using Royal Mail 'Signed For' or 'Airsure' to avoid loss of items and this increases the cost by £5.30. Also Ebay now takes 10% of our postage costs which means that we have to increase costs to break even.
We do combine postage to reduce the price of delivery.
If we overestimate the cost of postage then we give an appropriate refund - we never try to make money on shipping costs.