Adjusting text position for 2D symbol


When I am placing  3D and its relevant 3D object somewhere on the drawing it comes on the same Z level. But in case I want to adjst the text position for example close to the 2D symbol, then what I have is that the text does not stay in the same Z-level. I tried to lock the ACS plan before moving but I am still having the same problem. When I take a front view the text and the 2D symbol are on diferent levels.

Any advise ?

Thank you in advance

A Serhan