Espadrille wedge heel online bought

The worst retail store to purchase items online. I ordered the same shoe 3 times, 3 different orders. The first ordered I collected I ordered a size 5 espadrille wedge heel when I opened the package it was a size 5 right foot and a size 6 left foot. I called online only to be told they can do nothing I should just return it. My second order I ordered the same shoe just in a size 6 online I collected and the first order I returned they repacked it for me to collect. My third order was the same shoe size 6 only to open the package finding clothes when I returned it they looked at me I'm like this is your retail store that catches this **** on l. I needed this shoe for a function this coming weekend yet after 3 orders still no shoe only to be told someone else is sitting with the shoe. I never once received service like this from woolworths or Mr price I got my items on time and it was exactly what I ordered unlike with foschini. I was kept waiting while the manager tried to sort this out said she will call me only for me to go back for her to assist me again. This is pathetic service I received from this retail store and not once did they ever try to go out their way as I needed the shoe for a function which I stated.