At which level in the organization chart the customer service manager should be? And to whom he must report?

The Commercial Department (under the C.C.O- Chief Commercial Officer who lead under his Commercial department the following:: - Customer Service department (Customer Service Manager Reporting to C.C.O) - Sales Department(Sales Manager Reporting to C.C.O) - Marketing Department(Marketing Manager Reporting to C.C.O)

he should be the manager of his, and he reports to the operation manager not the GM cause that's who the OM reports to.

Mangment..reporting to the commercial Manager or GM

Dear Mr.
Ali It is due to many elements: 1.Are you selling a service or a product ? 2.How big is your clients list ? 3.How big is your organization ? However generally it is better to split any organization to two main clusters A.customer service, sales and marketing we call them the commercial arm so they should be connected by a way or another B.The operations cluster as the human resources finance …etc If you give me more information about the elements mentioned above I will be honored to help you more

It depends on the size of the industry.
The customer service manager should be in the management of the organizational chat and should report to Head, Process review or the Chief Commercial Officer

Commercial Manager!

Depends on the size of the company, but in banks for example they follow retail department ( Head of Retail ).

managment level , reporting to the G.M .

should be in the middle management hierarchy