Opening Expressions for Letter of Complaint

1. On behalf of the ______________, I wish to lodge a complaint about ___________.
2. I would like to complain about the late delivery of ____________ in our area.
3. We would like to draw your attention to _____________.
4. I wish to make a complain about the __________.
5. I wish to bring to your attention _________.

Closing Expressions

1. We would like  you to look into this matter and take immediate action.
2. I hope you will take action at once.
3. We hope that you will co-operate and take action on this matter.
4. We hope that our complaint receives your full consideration.
5. It is hoped that you will solve this problem.