Water damage and reaction from Dell

A Latitude 5420 did not start anymore and was simply dead. Tech on site noted a water damage and did not repair the device. Next step was an offer to send the notebook to Dell.

I'm in IT of a global company with thousands of PCs. Never before such an incident was handled this way and seems also not be done in US for example (I'm located in Germany).
We don't want to send out devices with company data on disk and fought around to get a technician on site with all spare parts to do the repair. No chance. The contact mails are more or less ignoring, what I wrote. Some answers are for sure AI generated. Mostly reminders to accept the offer. Even on christmas day they send out a "last reminder".

The general problem with that kind of send-in-repair is, beside the security problem with the disk, that they can change every part of the notebook and the owner must believe it. I'm sure the board replacement does the job.
Since nearly two month we have an unrepaired notebook and the communication is a catastrophy. Even our Dell contact persons in US or Germany were not able to do something.

Do you have similar experience?
Is this a new rule like the USB-damage-is-always-users-fault?

What can I do to get that notebook repaired on site?