Spice Jet Airlines — Complaint against staff Mr Norman

Hi
Yesterday i was traveling from Dubai to Delhi from spice jet.
The behavior of one staff Mr. Norman at the boarding gate was very harsh and was not at-all expected from spice Jet staff.
He is so rude with the passengers
One of my colleagues has an argument also and we told him ok next time we will not travel with spice jet but still he is telling ok its your wish. And he wants our boarding pass and telling that i will call COP.
Is this the way to treat your passengers
The matter was only that my colleague has one kg extra cabin baggage and he is not allowing to board him.
Other staffs are telling No issue for one kg but he is not allowing