I'm guessing you had them delivered during the day and they set them on the ground in front of your door? I've had this happen before and it's not fun. Next time have a table or plant stand cleared off with a large note asking your mail carrier to please place it on there, which should help. Or, you could have them hold the box for pick-up - it's a bit of a pain, but you wouldn't lose all those crickets. If it is the case that they were delivered and then the ants covered them while at your home I wouldn't see why the company should issue a credit for something that happened after they shipped it.