Issuing a credit will mean they will apply your refund to your account at the hatchery then when you reorder you can use that money toward your purchase.
I just ordered chicks from Meyer. They had a better selection of what I wanted and had actual pictures of the breeding stock. I thought I would never order from a hatchery! But I don't want to deal with ordering 25 chicks and having to deal with all the roosters. The price of chicks from...