Dashboard scratched by workshop - repair/restoration options

[Calvinus]

I went to a workshop to fix some stuff onto my car and found that the worker had left a deep scratch on the soft plastic of the gearbox cover. Complained and the workshop offered to fix it by doing a carbon fibre wrap. Went down to pick up yesterday and discovered that the carbon fibre wrap job was like a primary school art work, all the sides not even with plenty of bubbles, the corners like haphazardly pasted with pieces of carbon fibre sticker like paper mache.

 

I have rejected the work and asked that he redo this, but is this common or is there a more reputable carbon fibre wrap place that we can go to?