My wife was playing a match and got into an argument with her opponent. My wife called a ball out and her opponent disagreed. My wife confirmed her call. When changing sides, her opponent yelled at her and basically called her a cheater. My wife conceded the match and left the court rather than be abused. This was a USTA League Tennis match and my wife's team wants to file a grievance, but we're having trouble finding a specific section of "The Code" that was violated. "The Code" is clear that the line call was my wife's to make and the opening section mentions avoiding unsportman-like conduct like yelling, racket abuse, etc, but is there anything else?
We've spoken to the coordinator, but all we got back was the grievance form. She seems like she wants to be a bystander above the fray since she will be involved in the actual decision and she knows both players.