The authority is due to report this month on its investigation into the complaint.
A spokeswoman said Flick was pleased to see the Electricity Price Review panel (EPR) raise a number of the same issues it had in its complaint.
"We're positive about the direction the EPR is taking, particularly when it comes to the [suggested] prohibition of prompt payment discounts, and win-backs, toughening the rules on disclosing wholesale market information, to introduce mandatory market-making obligations and make generator-retailers release information about the profitability of their retailing activities."
Flick describes win-backs as "a dirty tactic ... the goodies that get dangled in front of consumers who switch power companies". The practice not only hinders market competition and disadvantages smaller retailers which have less financial power to offer rewards, but disadvantages loyal customers who have never switched power companies - 42 per cent of Kiwi households, said Flick, which also sells power to businesses.
The company said the EPR panel's suggestions to strengthen the consumer voice and for ways to help people suffering energy hardship, were among "some fantastic and significant" recommendations made in the panel's second paper.
Auckland-based Vector, New Zealand's largest distributor of electricity and gas, said the EPR discussion paper was initially, largely encouraging.
"It favours options that reflect the importance of new technology, greater resilience and improved customer choice, as well as options that improve market transparency and address practices that may stifle competition or unfairly penalise some consumers," a spokesman said.
Genesis, an electricity generator and retailer, said the EPR had recognised that the market was competitive but that more could be done to ensure more customers benefited from competition.
Chief executive Marc England said the industry was competitive and the generation sector was delivering secure energy supplies to the economy and greater levels of renewable energy.
"However, we also acknowledge that the full benefits of competition are not necessarily being accessed by all customers, for a wide range of reasons, and although we do not agree with all the recommendations, we welcome those aspects of the report that focus on initiatives to ensure more customers can access deals that deliver them the best value."
England said Genesis would take some time to review the detail behind the report, including the recommendation to remove prompt payment "discounts" but retain late payment fees. Genesis offers such discounts.
He welcomed the EPR's support for removing the low fixed user tariff, which had not worked as intended, and to develop a clear and common definition of "energy hardship."
