Section 8. A membership certificate shall be issued by a sponsor to each participating member under a membership legal services plan. No membership certificate shall be issued unless it contains the following provisions:—
(a) A statement of covered legal services under the certificate and the basis for payment for such legal services;
(b) A statement of the duration of the certificate and of the terms and conditions upon which it may be extended, renewed, amended, canceled or otherwise terminated;
(c) A statement of the period of grace which will be allowed for making any payment due from the participant member under the certificate, which in any event shall not be less than thirty days; and
(d) A description of the membership legal services plan’s method for resolving member complaints.