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).
This phone number is Minnesota Department of Revenue's Best Phone Number because 1,218 customers like you used this contact information over the last 18 months and gave us feedback. Common problems addressed by the customer care unit that answers calls to 651-296-3781 include and other customer service issues.