[mothered]

Refund obtained !
After 8 days of waiting, I contacted them again via chat.
The agent went to see the result of the investigation and he first told me that they could not do anything for me.

Because the delivery company indicated in the result of the investigation that the package was delivered to a safe place.

I said that this was not true. I waited a little while for him to answer and then the agent offered me a refund, which I accepted.

You're very lucky the rep approved the claim at his discretion, and did not decide to decline It based on the delivery status.

At the end of the day, It succeeded and that's all that counts.
Congrats.