Terrible customer service. No refund on deposit since October

Terrible customer service. I ordered a pair of Nike Air Force sneakers on the 25th September, I was told my requested size was available. When my order was delivered on the Friday 27th September the size was incorrect, I was told that size I wanted was not available but he would try source it, after numerous messages the size I needed was going to be delivered on Tuesday 1st October, I was told the driver was on his way, this went on for a few hours, I called a few times for feedback eventually his phone was switched off. The driver never arrived and I cancelled my order on Tuesday, I AM STILL WAITING FOR MY REFUND.

My messages are ignored yet you can see he has been online.

The service is absolutely pathetic.