A ban on 'dual pricing' in the insurance market will be debated in the Dáil later.
TD's will consider a Sinn Fein bill that would outlaw the practice of offering new customers better rates to those who always renew.
An initial Central Bank report last year found dual pricing to be more prevalent than insurers were letting on.
Director of the Alliance for Insurance Reform, Peter Boland, says TD's must take the debate seriously.