Takealot has bots as service agents..

Shocking service. I think they might have AI or NPC's instead of service agents.. I purchased wireless earphones to replace my broken ones from them. These are used as a vital part of my work as I do training. I app**** a R150 coupon code and proceeded to dot he payment. I then realized that I was never asked collection or delivery and that the system just automatically went to delivery. I then stopped mid-payment and it said that my coupon had already been used. (Takealot error) I proceeded to pay for the earphones and then IMMEDIATELY emailed them asking that they change the order so I can collect. They do have stock.. I then got a reply saying that they cant do that.. WHY?? I said that I am sick of their S$%T service and I demand a refund so I can purchase a replacement set. They then responded saying that they are unable to do that..... I am going to claim my R1500 fee for every single session that I miss as they now have the money that I need to buy a replacement and I require it to make a living. If this happens on Monday when the delivery is scheduled, this would be around R14000 that I will claiming in the small claims court.. I am sick of poor service!