If you're a decent plasterer then that's what you'd expect. I reckon @allsop builders are just using some general trades to try and bang out the last of the job - if you can see joins and screws in the plaster then it's a shit job and not worth paying for
I suppose one of the pitfalls of appointing a main contractor and allowing then to sub out with no control. Just a bit of a disaster really - gets you down!
If you're a decent plasterer then that's what you'd expect. I reckon @allsop builders are just using some general trades to try and bang out the last of the job - if you can see joins and screws in the plaster then it's a shit job and not worth paying for