Not happy with the service

I placed an order on the 28/11/2017 Order No, ********** 56 I was then told that the item was out of stock after I made payment and expecting delivery - of which the delivery was late.

I called the call center to enquire about Spree refunding me the agent told me that there was an error on their end , where item were sold out but still available online , which seemed doggy was this a stunt to show that they reached the mark during Black Friday and Cyber Monday ??????????

Anyway he told me that the refund will take some time to be process he suggested the store credit and said I will get a 50% voucher off my next purchase . I have been waiting since Tuesday how long does it take to get that voucher sent to me ?

I have store credit and I want my voucher so I can make use of it.

Is this how clients are treated and yet they brand claims to be fast and reliable???