Horrible service

I bought a pair of size 7 Nike running shoes on Black Friday. I got delivered a pair of kids bike sandals, obviously some mix up had taken place so I wanted my shoes that I ordered. I logged a return and only way I could put the return through was to select a size 6 because my size was now sold out a week later so I added a note highlighting this. So I phoned Superbalist who said they couldn’t do anything about the issue until the return was brought back, mailed Superbalist then, phoned them again after they’d received the order back, the guy said he still couldn’t do anything except mail the warehouse, so mailed Superbalist again to make sure, and the yesterday I receive confirmation that I’m getting the wrong size shoes, mailed them again as speaking to anyone on the phone is pointless. So 3 mails and 2 phone calls later and still I’m getting the wrong shoes again. Service is so bad, after waiting a week for there shoes and getting the wrong ones, the original issue was obviously human error but not being able to resolve it is the annoying part. What’s also frustrating is I needed running shoes and specifically waited till Black Friday to get them and now I’ve wasted my time using Superbalist. Not the first time I’ve had issues with Superbalist’s system.