You recently sent a shipment to us on invoice 16/764-0.
Some items were received where the points had not been stamped in the rings by yourselves, and therefore we had to send them to Birmingham assay to have the points put in.
As this is something you should have done before sending the shipment, you will now need to cover the cost.
Please provide a credit note for £35 at November 2016 exchange rate of 1.2093 totalling $42.33 (I have attached the Birmingham Assay invoice for your reference).
Please let me know if you have any queries or concerns