Hi sssikuk. Welcome to HSfB.
I am sure our members whom have gone down this route will come in with their experiences.
I do know of someone who is also at present going down this route and they too are experiencing similar difficulties. Their assessor is actually contacting Students in a different branch of the company not too far away, but not bothering to inform the Students at a different branch of their arrival and are gone by the time the Students find out about the visit.
If it were me, I would most certainly be pestering the assessor at least once a week for any updates or merely just to keep in touch. I wouldn't necessarily hold off waiting for the assessor to contact me.
Good luck sssikuk. Hope things improve for you. You will always have people who understand in this forum though.