Delivery Issue - Very Poor Customer Service via Whatsapp

I placed an order on 13/11/2020. It's 26/11/2020 now and still no delivery. I contacted them via email and their web form, but I haven't had a reply. Earlier this evening I contacted th customer service via WhatsApp. The agent blatantly **** to me stating that delivery can take place up to 10 business days after shipping. That is not true! It states 4-7 working days...and no mentioned of "after the item has shipped". I asked why the order status shows CC Submitted, but the tracking shows "Shipped". Its been in this status since last week. All I got was a cold "The couriers close at 5. Is there anything else...". So rude and so unapologetic. I've never seen or heard of such bad service. I mean, you're chatting. Just copy and paste an apology for Pete's sake! You really do not have to mean it, but where's the customer service? I paid for those items and paid to have it delivered to a store. So nobody is doing me any favors. I paid for service and I expect the service to be delivered as promised.