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:
Almost 3,000 take part in Pilates world record attempt at Knockaloe
Record for largest ever class remains unbroken, but crowds achieve separate accolade
Ben-my-Chree sailing cancelled due to 'technical issues'
All Manannan journeys are going ahead as planned
81 'unsafe squishy toys' seized
Parents urged to check for unsafe items
Manx Utilities open 'prior information notice' for Garff Sewage Treatment works
It says it's not a 'competitive tender process' at this stage