How do I find out if I am on an IGT tariff?
If you look at your gas meter or on a recent gas bill, you'll find your 10-digit Meter Point Reference Number (MPRN). If this number starts with 74, 75, 76 or 77, you are being supplied by an independent gas transporter (IGT), and may face additional charges for your gas supply from some energy suppliers.
We do not feature IGT tariffs on Which? Switch at present.
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