Hi there
If your contacts were saved to the SIM card, it is unlikely you'll be able to recover them.
Is your device backed up to Google at app? If yes you may be able to recover them from your Google backup.
(I haven't commented about recycle bins as your post says you've already checked there).
I am not employed by Samsung nor do I receive any remuneration as a Samsung Members Star.
My device is an S25 Ultra.