I have been told from them that they would replace anything that is not considered an 8 or above. Not sure if this qualifies, so they may send it back. However, worst case is they send it back (or it gets damaged in the mail). Depends on the risk you want to take. Personally, if I have a card /27, the grade is not such a big deal, there are still only 27 of the cards, regardless of the shape it is in.