I had genesis energy before guy come to my house a...

I had genesis energy before guy come to my house and show me prices and he said we give you cheapest price as compared to genesis.he gave me $.50 cheap price but that time he didn't mentioned me any extra charges about (service charges +metering charges ) I found on first bill there was double time service charges and they put roughly $50 extra in bill i tried to contact same guy who sign me up but I couldn't. Then next bill arrives I found same i call customer service the lady she doesn't understand me she just said we explained everything on bill nothing hide but thing is why they add extra charges ? Why not these people explained when they sign up anyone. Horrible experience with this company.