1. A competitive supplier that is not a provider of last resort may discontinue any telecommunication service by providing written notice, not less than 10 days before the date of the discontinuation, to any customer of that service and the Commission.
2. A competitive supplier that is a provider of last resort may:
(a) Discontinue any telecommunication service, except basic network service, by providing written notice, not less than 10 days before the date of the discontinuation, to any customer of that service and the Commission.
(b) Apply to the Commission to discontinue basic network service to all or a portion of the service territory of the competitive supplier on terms that are in the public interest.