Bad service and communication

I ordered a phone from Samsung that I paid for with a debit card, full amount! Now they tell me that my order is in finance, why when the amount has been paid! I asked for the delivery date and they did not give me this. When I chatted to their service agent online she stated that she would escalate the issue and call me back to resolve it but that has not happened. I am so disappointed at their poor service and the fact that they are unable to provide me with a delivery date for my purchase.