Fast work with willing, for example, if a customer has a problem, it should not wait for a long time. Do not sweep the responsibility to someone else. It should not be laughing or joking with people who live near while the solution to the customer. Technical terms should not be used with the common man, but really, if necessary, or is unable to perform to the customer. The rejection must be soft and there is sufficient reason. Customer service and benefits protection.
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