There shall be paid on application to the beneficiary of each veteran heretofore or hereafter deceased from service connected causes arising during the period of service a sum equal to the difference between any payments received by the veteran or his beneficiary under section 3 and the sum of $500.00. In the event the veteran or his beneficiary has not received payment under section 3 the entire sum of $500.00 shall be paid to the beneficiary.
MCL 35.924