Please help me draft a email :

"I have received an E-mail from RAM (Client) stating that few of your team members are being very rude on E-mail and on calls . They do not understand the issue and do not listen to the concerns. Sam is completely annoyed with the behavior the team members have showcased . I would want you to do a completely look into the issue and get back to me on the action points.

3 answers

Who is Sam?

To whom should you address this email?

What are your thoughts?
Sorry My mistake : posting it again :

Your Manager is sent an email to you based on the email he is received from the client .Now he is looking for a solution with the root cause.

Mr RAM is the client.

"I have received an E-mail from RAM stating that few of your team members are being very rude on E-mail and on calls . They do not understand the issue and do not listen to the concerns. RAM is completely annoyed with the behavior the team members have showcased . I would want you to do a completely look into the issue and get back to me on the action points"
I'd first ask the employees who were criticized what they think happened.