The credit is paid quarterly (4 times a year) and will be paid after you have filed your taxes. The government will send out payments on:
July 5th
October 5th
January 5th
April 5th
If your credit is less than $50 per quarter, the CRA will pay you a lump some of the full amount on July 5th. If you feel like the Government has missed a payment you can always call 1-800-387-1193 to inquire.