Speak with the agent to find out why they did it and what gives them the power to do it.
speak with the agent's broker and let them know what happened and that you are not happy.
if that fails, speak with the local board of REALTORS then the state department that is responsible for licensing and file a complaint.
It's more than real estate. It's RAYL-Estate!
Keller Williams Elite - Dallas, TX
American Patriot Realty
You are shown here as a home buyer. Your question appears to be that of a home seller. As a home seller the agent can not change your listed price without your permission. If you never agreed to a price reduction call your agent and let him/her know you did not authorize any price reduction and want the price changed to $____. If the agent does not cooperate then contact their managing broker of the office and request that they address your issue. In addition, you can contact the local mls and file a complaint against the agent if all else fails.
All the best,