Same thing haPpened to me but I expected it. I figured the Marlins would release a patch after the fact. My guess is they didn't have it ready. You can now buy the path separately on eBay and there are a few places you can get them to add it. I have heard they might have a customizer on scene at the stadium.
Buy the patch separately and have a seamstress/alterationist stitch it on (most dry cleaning stores have one on staff). Or, do it yourself, if you're skillful enough.
Thanks! Just ordered the patch. Now I just have to figure out a place to get it stitched on. I don't want to risk messing up the Jersey by doing it myself so I'll find a seamstress or something.