Wobbly front drivers comfort seat

[Martyn P]

Recently the front seat has become slightly wobbly.
It seems to be the front right hand corner, probably the lift mechanism has come loose?
The seat itself is fixed to the rails securely.

Has anyone else had this issue?
Thinking of taking it to an upholsterers to try and get the heated seat fixed at the same time but if it is an easy fix will do it myself.

Thanks for any advice ...