Bad quality sneakers, delivered dirty and non existing customer service

I bought 2 pairs on Airmax 90's for me and my wife. The one pair of my wife was all good but mine was dirty and of poor quality. They promised to swop it around but never did. I asked for my money back the next day but they don't reply on calls or whatsapp. Please don't make use of these people. They are ****mers! Rather build your money and get proper stuff at original outlets.