“Sometimes you get several complaints, but it’s a form letter. When you suddenly get 10 emails in a day, and it’s just people looking for help, it raises a flag,” she said.

The inquiry into Sharyland comes at an awkward time for Hunt and its chairman Dallas billionaire Ray L. Hunt. The Dallas company is part of a consortium with a deal in place to buy Texas’ largest power utility, Oncor, from the bankrupt Energy Future Holdings, a move that will require the approval of the state utility commission.

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