A scam and evidently a big gamble: delivered the wrong laptop (cheaper model than I ordered)

Buying from them seems to be a gamble because some people get what they want and some dont so think long and hard about whether you are willing or able to lose your money. They sent me a completely different model laptop to the one I ordered (less specs, lower storage, slower processor, etc.) and I have been trying to get them to collect it for the last 2 months and they keep making up stories about a courier and sending me from person to person. I have dealt with Keith, Nigel and Vince and they each tell me "the courier is coming tomorrow" since May 31. Half the time the phones go unanswered and they even refused for me to courier it to them at my own cost just so I can get my money back