Ah, the paper route. Hopefully if it was mailed within that 30 day time frame you are good. Maybe someone here on the forum can confirm whether it is by postmarked date or arrival.
Im not going to say they are "forgiving" but I had one that got lost in the mail and showed up 2 weeks past the 30 days, and had no problems. Could depend on the person, fear not they are people just like us!