rude, arrogant, and self-centered customer care agent

I called to reverse a transaction of an amount I sent to an account of my relative, which is not used any more and the agent was rude, arrogant, and self-centered to a point we ended up insulting each other over the telephone and exchanging insults.

All this because i wanted to add my relative to the call so he can hear what he said and The guys told me he can not allow that and did not give a reason as to why,