And yes, I have read the operating instructions. And yes, I can connect to the power socket, a massage cushion correctly.
So I'm assuming that this device is a mess. I now have demanded my money back and will certainly no longer buy from Sanitas. Insane, one would say in English.
I have in my adopted home of Toronto for 2 years a massage cushion "Made in Japan", visually and functionally very similar to Sanitas 644.06 SMG 141 Shiatsu massage pillow. This now works for 2 years without complaint for the same use.