You need to read the terms of your new lease agreement for your rented unit. Its terms and conditions control the obligations between you and the new landlord.If the new written lease that you signed specifically states that your monthly utility bill is now $58.00 after it had been $40.00 under the old lease, then it makes no difference if management changed utility companies before you signed the new lease agreement with the $58.00 monthly charge so long as you always paid $40.00 monthly under the old lease.Management has the right to change utility billing without telling you that the price will change if you sign a new lease with the new monthly utility charge stated.