Is it worth appealing the following decision. I have just finished an MA in theology? I got the following marks.

Dissertation 78%
Unit 1 64%
Unit 2 67%
Unit 3 70%
Unit 4 71%

I have been awarded a merit for the MA. But my average mark is 70%. Is it worth appealing this decision?
Would it make any difference to funding chances with formal mark of distinction? This just feels wrong. I did the MA over 2 days a week, while working the other 3 days. According to the college rules this is a merit. I just think this is ludicrous.