We’ve all been there: a frustrating experience with a product or service that leads us to reach out to customer service for help or to voice our complaints. While it’s understandable to feel upset or annoyed in such situations, it’s important to remember that maintaining a respectful and constructive approach can significantly increase the likelihood of a positive resolution. To help you navigate the customer service landscape more effectively, here are three things you should never do when you complain to customer service.