Thank you very much for looking into it and helping to resolve the case.
Note that in parallel with this message on the forum, I responded to the rejection email correcting the dates cited as a reason to reject the claim. Before receiving a message indicating that my claim was approved, I received a further rejection stating the following:
Thank you for sending us documents with regards to your purchase. After validation we have noticed that
you have sent us the online order confirmation instead of the invoice.
I had been very careful to download my invoice, not my order confirmation, and I had kept a copy of the document uploaded with the claim. The original claim did include an invoice, not an order confirmation. The word "Invoice" at the top of the document, the "invoice date" and "invoice [number]", the section with "Invoice details" and the "Invoice total" should have been fairly clear clues to person handling my case.
Anyway, thank you very much for helping to resolve my claim.
