Bad Customer Service

I have just received an incorrect delivery (2020-07-16 at 17:07) from The Courier Guy. The gentleman that delivered the parcel made me sign a waybill that had my details on it, however, the waybill pasted on the package and the package itself, belonged to another customer. As soon as I realised this, I called the customer service and they told me that the driver had said that he isn't coming back to fix his mistake, he is going back to dispatch and will fix it tomorrow morning. The delivery happened at 17:07 and I called customer service at 17:18 and again at 17:20. I feel that this is unacceptable as I received no apology.