There is really no excuse for rudeness or bad customer service - bad day or not. If that guy acts like that on the phone with one customer, you know he is acting that way with many others. A good employer chooses customer service people based on their personality. Sounds like both the employer and the employee were at fault on this one. There are too many other companies out there that are starving for business and willing to provide service. Why waste your time with anyone else.