Hard to tell with the white background but the card looks shorter than 3.5 inch on your pic. It does not take much to be undercut or long for that matter. Careful measurement with a dial caliper will tell you size to .001 and you can make your determination of what to do from there.
The nice thing about size is that it is objective. It measures to tollarance or it does not. No subjective "eye appeal" crap involved. Of course the grader may not be able to measure correctly but that is a different issue.
If you are certain that the size is good you could send it back. If it is factory short, maybe the card is better suited staying raw as part of a complete set. Good luck with it, nice looking card
