Incorrect size received

I ordered school shoes online as the stores in my area did not have the size I needed. The shoes finally arrived but the tag on the shoes showed it was a size 8 and the shoes were actually a 7. I called the contact centre on the 24th of March. The lady who was helping logged the request for me and even escalated it. She explained the turnaround time was 24-48 hours. By yesterday the 28th March, I ended up calling again as I had not received any feedback as yet. The lady said she would escalate it again to the warehouse. Yesterday I finally received an email asking for pictures again when I had already sent the picture last week Thursday when the lady asked me to. School starts in a few days and I do not have the shoes. What will more than likely end up happening is me being told at the last minute that they do not have the size I need and then I will be forced to have to find alternative shoes at the last minute. (lets hope if they do refund that they refund the amount I had to pay for delivery as well) Where is the client services, in this process? I have been more than patient. I have done everything you have requested. HOW can an escalation take 5 days. It is simple, deliver the correct size and fetch the wrong size. Reference for my complaint logged ***2