I recently bought an A21 (SM-A215W) for my mother, but she has lost the Sim tray out of the phone. I have tried Amazon, Ebay and even Samsung Canada themselves, but no one seems to have access to a Sim tray for this specific phone. I have found plenty for an A21s, but I've tried them and they don't fit. Samsung directed me to a third party repair centre, and they simply said they don't cover that phone. Any suggestions would be greatly appreciated.