Shocking online service

On 31 March I ordered a laptop and paid for it from Hificorporation online. When I clicked on "track order" it said that the order was placed successfully. It won't let me go any further so I can't find a tracking number. Phone calls and emails to them get unanswered. I have phoned N1 City branch and they are also battling to get any help. This is DISGUSTING SERVICE. Almost 2 months and no laptop although it's paid for. Any suggestions?