Silver Peridot Earring

I ordered a pair of earrings but when they arrived the earrings were 2 very different colours so cannot be worn. 1 peridot colour and one almost clear in colour. It was €8 for postage. It will be €8 to post back. And I will have nothing to show for my €16. I had put €100 on a necklace only 1 week prior and I am unsure about doing any further business with this establishment as I am still awaiting a reply from my last email.