I guess it's a sign of the times that I didn't really expect a refund for the duff ebay saffron, without a horrible wrangle of threatening to leave bad feedback etc etc. The seller was fairly new to ebay and so I couldn't really judge their character from their track record. So anyway, I thought having nothing to lose, I would write a polite email and complain about the atrocious quality of the saffron in the hope of sending it back for a refund. When the seller refunded my payment including postage and didn't even want me to send the saffron back, my faith in human kindness was restored. Thank you Martin Palfreyman!