Hello and Welcome to justanswer...
Hello there.. Im just reading your question through - give me a moment..
IS this a front or rear wheel drive model?
think it's a front
ah yes - P reg sorry
Can you select all the gears normally?
ok so when you then come to pull off you have this issue - does it make any noises / banging noises or anything like that when you get the problem as happens?
no other noises except for the revs when it doesnt move
so the revs rise high - the car will not move - and sometimes you get the smell - ... does the clutch pedal appear to be operating as it should at that time -?
I also double check that it is in gear as well
In that case... the problem has to be with the clutch again Im afraid. It may not be the actual clutch itself - such issues can be caused by the clutch plate sticking on the first motion shaft / that shaft that it operates on. Normally this would be cleaned up and lightly greased to stop this happening but I do know that some garages omit to do that - and then you get what you have - even with the new clutch.... The botXXXXX XXXXXne though is, it will have to have the gearbox removed again and have it all checked out... The good news is, this should be done under warranty for you so it shouldn't cost you anything - but given the description of the fault -and having gone through it all with you - that is going to be whats wrong ( either its sticking on the shaft - or , its a faulty new clutch - which can and does happen )...
Im sorry thats not perhaps good news / what you wanted to hear - but there is no other way to inspect / check it - it will have to be stripped again Im afraid.
Ok that's fine thanks I suspected that I'd have to get back in touch with him to sort it out again