They don't want to refund me - *********** Staff - Poor service

I logged an online return and chose a method of return as the store. The items were unopened when I returned them to the store. They couldn't take the items since, "Apparently," I had to bring the credit card I used to buy the items (which is lost) for them to refund the money into the card. I called the online store to request that they fetch the items. They haven't done anything to expedite the return. And it seems that it's their delaying tactics, so they don't refund me. I'm never buying at this store again.