We all know that a positive tone and language are highly important when it comes to good customer service, but many retailers still use phrases that may give the wrong image and negatively impact our customers' shopping experience. 
The following phrases used in a customer service setting can kill a sale and possibly lose a customer.
Here are some sayings retailers should avoid: 

1. I Don't Know
Customers don't expect retailers to know everything, but when it comes to answering a product question or other enquiry, they do expect the salesperson to be confident enough in their knowledge of the business to provide an answer. 

Better: "That's a good question. Let me find out for you."