Poor customer service

Bought a sneaker from Puma online on 13th September with delivery date as the 18th, 18 passed no communication from the company and my shoe had not been delivered. I call the company on the 20th and was advised they will follow up with the courier company and call back, later that day the status of the delivery changed to missing. I don't hear back from puma until I ring them back on the 21st to be told they are still waiting on the courier, I get a call from the courier day later to find out if my delivery had arrived which it had not. At this point I'm also in contact via email to puma but have to assurance that they are doing anything expect for just waiting for their courier company, I am frustrated and disappointed. I call the company again on the 27th, was promised a call back in a hour but nothing. I sent an email again requesting a refund, Saturday the 30th the status of delivery changes again to delivered yet I had not received any updates from both puma and the company they used to deliver. I get a call from puma on 2nd Oct to ask if I had received the order, I told the representative no and it makes no sense that they would say it was delivered to my place of work on a Saturday when I don't even work even so let's say I arranged for someone to sign for it but how would I have made Arrangements without knowing when it would be delivered as I received no contact. They lady promised that they would request a delivery slip from the courier and call me back, I've heard nothing since yesterday morning and when I try to call the company this afternoon I can't get through. All I need from puma at this point is my money I am far beyond disgusted with the level of their service and want no further dealings with them. 3 weeks later I don't have the sneaker and have not received my refund.