Final answer:
The exact percentage of customers who never return after being treated rudely on the phone is not given, but poor customer service is known to negatively impact business. A targeted survey is required to ascertain the specific statistic.
Step-by-step explanation:
The specific percentage of customers who are treated rudely on the phone and never do business with a company again is not provided in the information given. To answer such a question, a business would need to conduct market research or review customer service surveys that specifically address the impact of rude phone treatment on customer retention. However, it is a well-established principle in business management that poor customer service can have a significant negative impact on customer loyalty and can lead to loss of business. Inferences can be made from related data, such as the survey that found 54 percent of mobile phone users used their phones for messaging, which highlights the importance of communication in customer interactions. Yet, to determine the precise percentage related to rudeness over the phone, a targeted survey querying customer reactions to rude service would be necessary.