(1) A license granted under this act may be renewed upon application and the payment of a renewal fee of $300.00, unless reduced under section 9(5), and filing of a renewal surety bond or liability insurance policy in the amount equivalent to that specified in section 9.

  (2) A renewal license shall be dated as of the expiration date of the previously existing license. For the renewal of a license, the licensee shall submit an application in such form as prescribed by the department. Upon receipt of a completed application, payment of the renewal fee subject to section 9(5), and proof acceptable to the department of bond or insurance, the department shall renew a license. The department may defer the renewal if there are uninvestigated complaints then outstanding against the licensee or if there is a criminal complaint then pending against the licensee.