Bad, Worst Horrible online Customer service experience from Totalsports online shopping

I bought two of Takkies on the Totalsports online shopping website on the 01 May 2019. Only the one pair of Takkies was delivered and I found it weird so I called in to find out why only one pair of the two pairs I bought was delivered the consultant I spoke to ensured me that it would be delivered in the next week then I called in the next week when the Takkies wasn't delivered they then told me no they sorry for the inconvenience the Takkie was sold out at the time of the purchase and that I would get a refund within 7 to 14 working days I was fine with it and thought it was just a mistake. I then bought a pair of Takkies again on the 18 July 2019 there showed stock online made the purchase everything was fine it would be delivered in 3 to 5 working days, I called after the 5th working day to ask why it wasn't delivered the consultant explained me it would be delivered in the next few days there was a mess up the Takkie was already sold out and they will be sourcing it from a store and so on. I called on Monday to find out what's going on they told me sorry we will be giving you a refund in the next 3 to 14 working days. That's when I started getting angry because the first time I let it be and accepted it but yoh now I can't accept it because it happened a second time and then I must wait for my money and sorry will it always be sorry the mistake is on there side you can't advertise stock online and when a customer purchase the item everything is fine and when no delivery happens you as the customer starts calling in they start with there stories that the Takkies will be delivered only to hear a week later that unfortunately there's nothing they can do and they will be refunding you. First of all why advertise stock they don't have online because then they should be removing the item from adverti*****t and when you call in empty promises are made. I called in today and demanded my refund happen today or for he latest tomorrow morning oh no sorry theres nothing we can do to ensure you that your money will be paid in, then I request the calls I made to them about all the lies I've been told sorry Mam we can't do that either because it's personal calls and cannot distributed to customers but then why tell a customer calls are recorded for quality purposes and can be given to you upon request and then when I request it I get told I can't have it. I think there online shopping is pathetic, and how they deal with there customers and how they cannot correct there mistakes as a well known brand having thousands of customers but no it continues. I Am A Very unhappy, upset and irritated customer because as I encountered it twice already and I'm sure it will it happen again and again and again and how many other customers are not effected by this pathetic service. I would not have thrown a tantrum if it wasn't a birthday present I bought and told the person it will be delivered and it will be delivered and then empty promises and empty promises. I'm upset and I want to know how they will remedy there problem because it was clearly a problem