It's hard to tell as the image does not work but I assume you are asking why "+Merit" link does not show up.
It will show up once you obtain Merit and hence sMerit, and then you are ready to send sMerit.
With 0 sMerit, "+Merit" link does not show up, though the exception is the case where you obtain sMerits and run out of them, in which case "+Merit" link will remain regardless you have 0 sMerit.