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Hundreds of thousands of households have been charged the higher rate of GST on electricity, phone and water services that were supplied before the GST rise took place.
But companies are defending the policy because it would have been impractical to get meter readings ending on September 30, the day before GST rose from 12.5 per cent to 15 per cent.
The companies - including Meridian, Genesis, Contact Energy, Telecom and Auckland Metrowater - have come under fire from the Government, which has asked them to act in good faith and credit customers who have been unfairly charged.
Do you think companies will use the GST increase as an excuse to raise prices? Here is the latest selection of Your Views: