A registration certificate which has been suspended is subject to expiration and shall be renewed as provided in this act, but such renewal does not entitle the holder of the registration certificate while it remains suspended and until it is reinstated, to engage in the business of selling or in the practice of fitting and selling of hearing aids, or in any other activity or conduct in violation of the order or judgment by which the registration certificate was suspended. A registration certificate which has been revoked is subject to expiration, but it may not be renewed. If it is reinstated after its expiration, the registrant, as a condition precedent to its reinstatement, shall pay a reinstatement fee in an amount equal to the renewal fee currently in effect, plus the delinquency fee, if any, accrued at the time of its revocation. The registrants shall also be required to furnish evidence of completion of the continuing education as provided in section 311.¹