Agarwal Packers & Movers — Poor service and having uneducated people at work

Address:

560075

I had survey scheduled at 6:30pm. But around 1:00pm had a call from field executive and they told that they are coming to home. Also their way of talking was not good. When i contact with branch office (Bangalore) they told that we didn't send any one.
Questions:
1. How come they come very early?
2. Why they are talking indecent?
3. If agarwal not send them then who they are? How come they know my details?
4. Is the data shared with agarwal can be exposed to outside?
5. If things go like this how come customer knows this is a genuine person or not?

I am requesting agarwal not to play with your customers.