Bad customer service!!!

I went into the Brooklyn Branch early last week - they did not have my size - they ordered the right size from The Online platform. It arrived at the Brooklyn Mall on Wednesday the 5th - left shoe size 6 and right shoe size 7. These shoes are needed for a Matric Dance on the 8th. I was told they could send them back but would not have them back by the 8th. Brooklyn Branch called Church Street to put aside a pair of size 6 for that I was told I had to go and collect - they could not deliver between branches. I then went to collect the shoes at 11am today the 7th - I get there - the shoes have not been put aside - eventually I get a pair in a box and when paying find out they are both left shoes!!! An assistant then finds a right shoe on a manikin - so eventually a pair of shoes with a right and left. I get to the counter to pay - 40 minutes later and the system will not sell the product saying they need to be returned to the warehouse!!!!!!!! This is absolutely unacceptable. Quality control at online - shocking!!! No offer to get a pair of shoes from one branch to another in the name of customer service after a packing mistake at online. Still no shoes for the matric dance. Infuriated.