Education Minister Adrian Piccoli refused to meet the charity that provides ethics classes to NSW schools about a proposal by religious groups to erase reference to their availability from the official enrolment form.

Bruce Hogan, chairman of the charity, Primary Ethics, wrote to Mr Piccoli twice in April requesting an "urgent" meeting over the proposed changes.

Education Minister Adrian Piccoli was "not in a position" to meet ethics providers. Credit:Louie Douvis

Mr Hogan also called Mr Piccoli's office but told his colleagues he had been "blocked" from seeing Mr Piccoli or his chief of staff by a staff member.

Mr Hogan was eventually told it was an "operational" matter and advised to speak to an education department official because "the minister would not be in a position to meet with you about it."