What will you do if you receive a direct complaint from a client?

First, we examine the reasons that led to this complaint and try to solve and to insure that the customer won't encounter such a problem again.

I will take note of it and try to solve it the sooner and by best means.

A client is who brings business to you, yes, need to analyse his situation and listen to him for what he is escalating the complain about. Calm him down and give him the response that you will be immediately start acting on his situation and confide with him that you will be in a positive position to solve his issues if it is under your authority or else advise him that you doing your best to have it solved by consulting with your management and giving him a solid background such as a time and a date when the matter will be resolved. 

Listen to the client problem carefully then try to handling him with out being angry with him or her then I should solve the problem quickly.

complaint analysis is a step by step process, and it requires a detailed assessment. Will check the type of complaint and need to give an assurance in first hand. Will check all possible options to get that resolved and provide a deadline for a fast resolution. While working on the complaint, make sure the problem will not occurred again to make the client satisfied and happy.

Thank you for the invitation

Initially receiving the compliant and then check if we were involved in the complaint then study the compliant statement then the concerned compliant and refer the compliant to the concerned authority    

first listen carefully to the client without interrupting him and i understand the  complaint and then resolve his problem.

I do hear the complaint carefully and if a speech read it carefully if the problem is solved or I could go back to direct managers but more importantly, lit up the client

I will listen to customer carefully & try to solve complaint as soon as possible either if its a big complaint i will forward to the management

Thank You for your invitation ... I will agree with the answers that really covered your question  ... Variety of correct info and opinions ... Nothing to add !