Can I return an online order here? And if I am unable to get an exchange because they don’t have that item in stock will they give me a refund or a gift card Credit ?

I've returned online orders but I believe I took them to catalog on lower level.

JCPenney's policy depends on the item and whether you have a receipt, but here are some of the general rules. If you've got your receipt, you can return an item to JCPenney at any time. Without a receipt, products are good for exchange or refund at the item's lowest-selling price within the last 45 days