Complaint about store delivering incorrect sneakers

I’ve ordered a sneaker on the 31st of oct. When it was delivered it was the incorrect sneaker, but on my invoice was the correct sneaker I’ve ordered; which was a fault probably on the warehouse side of the company . Never the less I’ve called stores and eventually went in to n1 city I was assisted by a young lady called Thahrah she tried her utmost to try and help me and up until today she’s still phoning around. So yes solution was then to do a refund and then repurchase the correct sneaker because by doing a straight swop there would be a discrepancy. And advise it would take 7 to 10 working days to reflect which is just over 10 working days and I haven’t received anything yet . I keep calling her because she’s the communication between myself and the online store so she said she spoke to Ra’eesah with regards to my query and she said she’ll give me a call back;That was this morning 11:45 . I still haven’t received the call it’s 14:48. I called thahrah again and said I’m still waiting on their call and she called again and this time spoke to a Brogan which said they need to wait on the warehouse to do the refund . My point is why do I need to wait this long ????? When it wasn’t my fault? I purchased the correct thing I followed the correct procedures and the company messed up but still have me waiting this long for their own fault ????

This is UNACCEPTABLE!