Joseph Ade Coker,the Greater Accra Regional Chairman of the(NDC) has called on Ametor Quarmyn, a Communications Consultant to the NHIA to place a �phone call and render an unqualified apology� to him, for his gratuitous vituperation over the suspicion that he (Ade Coker) is behind the grope calling for the dismissal of the head of the NHIA, Mr. Sylvester Mensah.