FNB BAD Customer Service

I cancelled my Netflix account end of March, they deducted money off my account but paid it back into my FNB account but FNB has not released it as yet, but Netflix said that it's released from their side and in FNB's hands now. I phoned FNB and asked if a consultant can phone me back if my phone gets cut off so I can get this problem sorted out for good. When the phone call was cut NO one phoned my back.I just need my money back which is owed to me, as I phoned FNB 4 times already without any luck. They don't come back to their Customers.