lately my Panasonic front load started to show this similar issues (vibrate).  I guess mine is due to change its absorbers , etc etc.

how did you engage with the panasonic SC?  call them up and they send technicians to your home?

Front load WM got 2 springs above and 2 dampers below. My Beko WM is 10 years old and shakes like crazy sometimes. I opened up and looked at the dampers, both are leaking oil. Since the machine quite old and rusty due to leak from door seal, I decided to buy a new one. Not worth to replace the dampers, door seal and outer body.