Colorado Revised Statutes Title 40. Utilities § 40-15-113. Unauthorized charge for services

(a) Charging a customer for goods or services without the customer's authorization;

(b) Adding charges for goods or services to the customer's bill without the customer's authorization; or

(c) When providing billing services for a telecommunications provider, knowingly or recklessly participating in charging or billing a customer for goods or services without the customer's authorization to add the goods or services to the customer's bill; except that, in accordance with federal law, this paragraph (c) does not apply to a provider of CMRS services.