It does say unlimited m2m calls, however if you make them after day hours, you get charged the minutes against your night and weekend minutes, but if you do it during the day they don't charge them against your anytime minutes.
The customer support phone number of Energy Assistance Minnesota is +1 507 328-6508/ 800-889-4970 (Click phone number to call).
Representation of Main Phone Number of Energy Star Contact: +1(888)-782-7937, +1(703)-412-3086. The Physical Address Location of Energy Star Contact is Provided as: 1200 Pennsylvania Avenue Northwest, Washington, DC 20460, United States The given email address and contact phone number of Energy Star Contact can be invalid, If so, report us HERE You may Need to Conact Energy Star Contact Through Email Address: