Rushen MHK Juan Watterson says he stands by his allegations the Post Office has bullied sub-postmasters over their contracts.
He made the accusation in Tynwald this week during a question about face-to-face government services.
His remarks were quickly picked up by Treasury Minister Chris Thomas, who asked him to withdrawn them.
However, Mr Watterson said he was happy to defend his words:
Castletown police station could be yours... for £250,000
Brewery advertising for operator for landmark Laxey pub
Hospice cafe reopens next week after refurb
Another one bites the gust - as Ramsey rocks cancelled
Mountain Road closed again after crash
Merchant Navy Day to be marked with memorial service
Fundraiser launched for injured MGP rider
Noel back in the saddle after handy pub pumping leaves him smiling