Shopping experience from Hell

I ordered an item on the 25th of July and an incorrect size was sent, I app**** for an exhange and it was picked up a day later only to have them send me the incorrect size again that arrivedon the 10th ofAugust. Two times I sat with the same situation, the consultant who took my call promised she would Call back on Wednesday it is now Friday and I still haven't heard from her. I tried to speak to someone on their Instagram account only to be told I can't apply for an another exchange because the item in question was now under investigation and has been removed from their website, granted!!!! They need to investigate their sloppy Johannesburg warehouse or barcodes or even staff but why can't I be given what I paid for? Do I not have rights as a paying customer? I have discovered that if your item is coming from their Johannesburg warehouse it will either get to you dirty, faulty or incorrect. Why am I suffering because of their incompetence?

I need justice!!! I WONT REST TILL I GET IT. And when I do I'll be done with them because they have no respect for their customers.