Wrong Shoe Size Delivered

I bought the adidas sandal online as it was on sale. Original price was R449.95 and the sale amount was 299 and get a further 25% off. This was a perfect shoe for my 3 year old daughter who wears a size 6. Without hesitating, i ordered the shoe, size 6 that is. My shoe was then delivered at my nearest store in Jabulani Mall. I got home full of exitement and as i opened the package i noticed that the shoe is actually small. I then checked the size then BOOM it's a size 5 instead. I immediately checked my receipt and it shows i ordered a size 6. Ok well, mistakes do happen. I then decided to call Totalsports call center and was assisted by some lady. I explained the situation to her. She then told me i can go to any Totalsports and exchange the shoe or get a refund. I explained to her that i do not want a refund. I want the shoe i ordered and i want a size 6 that i originally ordered. She then kept on repeating the same return terms and how i will be refunded should the shoe i want not be available. I got irritated by all this. As in the first place its not my fault i got a size 5 instead of a size 6. I need to run around looking for a size six in all these stores whereas i bought conveniently online. I then asked her to check if Totalsports Jabulani mall or Maponya mall has the shoe, she then said they do not have!!! I then asked her again, to check which other stores has and whether its possible for her to ask the store that has a size 6 in this make of shoe to send it to Jabulani Mall, she then said she cant do that, its a store to store process. Now i am defeated!!! I originally bought a size 6 and mistakenly got a size 5 and now nobody cares and it is now my problem to sort out. To make matters worse, she says to me she will call me back as she has to speak to her manager about this and maybe in this event they can give me a voucher to buy another make of a shoe in case i fail to get this one. And, this voucher will be for the same amount of the original price of the shoe. Same day around 18:52 pm , i got a voucher code with the amount of R75 that expires the same day. I mean, what kind of a pathetic service is this??? I felt like an idiot. This is really uncalled for. My daughter is now without her favorite shoe and on top of that i am treated like a fool. My case was even closed the same day. No follow-up no nothing!!! Is this how Totalsports treats its customers when buying online. My expectations was that they will acknowledge their mistake and send the right shoe size at Jabulani mall where i can easily go and exchange, But all i got was the poorest of service!!! I am heavily disappointed and heart broken by this. The way i love the shoe, i even went to Jabulani Mall and Maponya Mall Totalsports to check whether they have the shoe in size 6 and to my disappointment both stores dont have the shoe! This experience has made me realize that buying online at Totalsports is really a gamble since there's no human touch to their service. I literally feel like i am dealing with ROBOTS!!! I am not happy and i am so disappointed! I have been made a fool. I still have the shoe by the way, with the hope that i might still get a size 6 for the sake of my daughter. Like i said before, i do not want a refund! I ordered a size 6 online which was available and i deserve a size 6. That's really not asking for too much!