gas meter readings

Hello Sorry if this is not for this newsgroup but I'm sure I read a similar post on here before. I recently had my combined gas/electricity bill calculated and I believe the gas bills for both this quarter and last quarter to be higher than I would expect. Both of these bills have seemed high after a new gas meter was installed and I read somewhere on this group a while ago that this can occur when a new meter is replace an old imperial meter. If I remember rightly it can occur if the gas company apply a conversion factor of x2.83 to the number of units used believing it to still be an imperial meter and therefore calcualting a bill of nearly 3 times higher than it should be. Am I right in this understanding as I would like to be able to at least sound as though I know what I'm talking about before getting on the phone to them? TIA Phil
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