Bad bad customer service for such a happy shoe

Had the worst experience. My husband bought me 4 (YES FOUR) pairs of Crocks online. But when we received them they were one size to small. We Went onto the website and the website states that you have a choice of either getting your own courier to pick the stock up, or you can take it back to any Crock shop for a refund or exchange. We left home at Amanzintoti and drove to Umhlanga. At the store they said that they are not able to refund us, because they can only pay the money back into a credit card. (WHATTT) We don't have any credit cards. We asked if we give my dad's credit card details if they will be able to help us, and again the answer was NO, the physical CREDIT (?) Card need to be in store They are also not able to give us cash back because they don't have enough cash instore. Then I checked to see if I can exchange the shoes for any other pairs, but they did not have my size in stock. So we then asked if I can exchange it for the amount of the shoes and they said that it's not possible, it need to be the exact amount per pair. How is this????? No help from the store at all. Didn't want to do any extra effort to accommodate us. We phoned the head office and Ashwin (who said he is working at crocks head office and will Not give is surname or his manager's name...) Was very rude to us. He told my husband to CALM DOWN!!! How is that for customer services?? Me and my husband ONLY wear crocks but are now never again. Because the way that they treat their customers is absolutely horrible!!!!!