Online order delivery promise failed

I placed an order online with Game on 25/4/2019 changed the delivery address successfully on 26/4/2019. Called websupport 27/4 to enquire when delivery will take place was advised 3-5 days as per online delivery promise also. On 30/4 I received and email and sms advising that the order was dispatched from the warehouse. For the pass two days no further correspondence for delivery nor hold ups with no stock whatsoever. I called again today and I'm no better off because it's still reflects it's being dispatched. Now if I cancel my order I have to wait almost 2weeks to be refunded. I refuse to accept that they have no stock at the time of placing the order there was stock. The feedback and service commitment is not acceptable. I'm really frustrated two weeks already of inconvenience and still no real answers.