Zimmermann does not yet have a clear policy about pricing changes should the cost of a good reduce following your purchase. To explain the matter and ask for a refund for the price discrepancy, you could, however, try personally getting in touch with their customer service line.
Zimmermann might not specifically promote price changes, but some brands provide this on a case-by-case basis, hence it's worth asking gently. As proof, be sure to include the revised pricing and your order details. Their website has their entire return and refund procedures.
Do you have another way to solve it? We'd love to hear from you in the comments.
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