Having to fix billing or customer service issues or communicate to product managers about problems customers are having with the company's products are all tasks involved in

A) team selling.
B) handling objections.
C) adaptive selling.
D) qualifying customers.
E) customer advocacy.

Customer Advocacy

A form of customer service in which companies focus on what is best for the customer.

Billing Issues

Problems or disputes arising from the process of invoicing for goods or services, including errors, unauthorized charges, or discrepancies.

Product Managers

Individuals responsible for overseeing the development, marketing, and sale of a product or product line.