I purchased a Roborock S50 on Kogan before finding a cheaper price elsewhere for a Roborock S6. I contacted Kogan within 24 hours to cancel my order and provide a refund. They ended up sending it out anyway and are now refusing to provide me with a cash refund, only store credit.
Am I entitled to a refund back to my credit card? I've been going back and forth with them over email for days now.
You are not entitled to any refund for change of mind. Any refund provided (by credit card or store credit) is purely due to goodwill of the store selling it. The store is also entitled to charge re-stocking fee for returned items.