Expect 1 to 2 weeks for processing.

In Wyoming, utility companies must provide at least seven days' notice to residential customers before shutting off service for nonpayment. This notice can be delivered via mail, email, text, phone, or a door hanger. Utilities cannot disconnect service during cold weather periods (November 1 to April 30) if it's determined that shutting off service could be a serious health risk, and they must attempt to contact the customer by phone or in person. 
Before disconnection

• Receive a notice: A utility company must give a minimum of seven days' written notice to residential customers before shutting off service for nonpayment.
• Make payment: You can prevent shutoff by paying the bill in full before the disconnection date.
• Set up a payment plan: You can also avoid shutoff by making a payment agreement with the utility company that covers the outstanding amount.
• Avoid extreme weather: Service cannot be shut off during the cold weather period (November 1 through April 30) if the utility determines it poses a serious health risk, and the utility must attempt to contact you directly before disconnection. 

If you have a medical emergency

• Medical certificate: You can prevent disconnection by providing the utility with a certificate from a doctor or public health official stating that a serious illness or medical emergency exists or could be created for a permanent household member if service is shut off. 

What to do if you are scheduled for disconnection

• Pay the bill: The easiest way to prevent shutoff is to pay the full amount owed.
• Contact the utility: If you cannot pay the full amount, contact the utility to ask about a payment plan.
• Get medical documentation: If a medical issue is the problem, provide the utility with the required certificate to prevent disconnection.