Legal advice has been sought after raft of issues
Isle of Man Energy will be asked to audit 23,000 customer accounts to check for errors.
The Office of Fair Trading says it follows 150 complaints about billing issues.
Legal advice has been sought in light of ongoing problems with gas bills – in one case one customer reportedly had more than £60,000 wrongly debited from their account.
North Douglas MHK John Wannenburgh is the chair of the OFT:
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