CTV Two Million dollar mistake Share: Text: Enmax customers will pay a special one-time bill this month and the money will be used to pay off a long-running mistake by the utility company. The bills, which will mean almost $1 million in revenue for Enmax will be paid by Calgarians that still get their water on a flat rate as opposed to a water meter. Helene Larocque got a letter with her last bill saying that Enmax had forgotten to charge her the increased 2012 flat water rate since January. Now Enmax is back billing her for the amount she should have paid. Larocque's extra charge is only $34 but she says it is the principle that bothers her. "It's a general business practice, I mean if you make a mistake you absorb it, you don't expect the client to pay for it," said Larocque. Laroque called our Consumer Specialist Lea Williams-Doherty for help. Lea tried to find out if Enmax even has the authority to back bill for the error. Lea and Laroque got several different answers to that question while making inquiries. When Laroque called Enmax she asked the customer service rep "on what authority can you back bill me for your mistake?" She says the rep told her it is in the terms and conditions of her contract. Lea and Laroque couldn't find anything about it in the contract so Lea emailed Enmax to tell them that. Emax confirmed that no, it's not there and that the