Compensation for baggage delay
Last week my family and I flew to Bilbao. At least 10-15 people’s bags didn’t make it on the flight. Including my bag with all my kids’ clothes and our toiletries in it.
Since the bags weren’t due to arrive for at least another day I bought some clothes and toiletries for my kids (since they had none). The total was about €95.
I submitted a claim with KLM for compensation for the items we had to buy and just received this response. What does it mean? What’s the extraordinary circumstance in this case?

Your case reference: C-XXXXXXX
Dear cheesecurdsNL,
I am sorry that your journey on August 8, 2026 which included the following flights:
KL 1525 from (AMS) AMSTERDAM to (BIO) BILBAO
was disrupted because of A situation like this is regarded as an extraordinary circumstance.Therefore, the compensation set by the EC Regulation 261/2004 does not apply.
—-
Is there anything I can do to appeal? Thanks!