Bad service

I bought a per sneakers Steve Madden on Saturday and make payments using PayJustNow and they confirm payment went through Steve Madden has not send any confirmation or confirming an order Send them emails no feedback contact number is not working This company is not professional I bought this as a gift to be used during the weekend I need this delivered today if they are not ***** stars and I’m cancelling my PayJustNow cause even them cannot contact the stores registered under their name How can we continue using this service if it’s so bad