Disappointed first time customer

I bought 2 pairs of Crocs on 23 October with the Croctober sale. Crocs has a 7-10 day delivery time so I was patient. I then receive a mail to say the delivery time has been extended to 14 working days...again I am patient. Today it is 13 working days and no notification received regarding shipment. I phone the Crocs customer service desk and speak to Bonnie who tells me that my order is still at the warehouse and that she cannot give me a ETA on when I will receive my order. I then promptly get an SMS to advise that my order will be dispatched on 22 Nov!!!! Slow deliveries, not enough stock, not enough couriers etc NOT MY PROBLEM. Crocs, you took my money but you are not giving me what I paid for. With such a massive sale, you should have expected a huge response and planned accordingly. Please either deliver my paid for goods urgently or cxl my order and refund my money. This was the first time I have supported you, never again. You have lost a customer and I'm sure many others. I hope you learn from this. Please also respond to my mail sent to your customer service which was sent on Friday 04 Nov, despite your 24hr turnaround time, to this day no one has bothered to reply.