Volunteer Energy Rip off , charging prices twice more expensive than rest of market Ann Arbor Michigan

I have signed up with Volunteer Energy as an alternative gas supplier over one year ago. All was nice until this winter.  Gas prices from Consumers Energy were 4.something , Volunteer Energy was charging 6 to 8 dollars for the same service.  I ended up paying close to $300 for 19MCF for December , and after cancelling them,  just under $180 for 24MCF (at the regular Consumer Energy prices) for January.  Therefore I strongly advise anyone interested: DO NOT SIGNUP WITH THEM. YOU'LL END UP CHARGED ALMOST OR EVEN TWICE MORE THAN ITS WORTH!