Alan, as I do this for a living thought I though it might be useful to confirm a few points. Scratches from 'soft' objects such as bushes almost always come out using compounding liquids (such as Farecla G3 or the Autoglym trade range). These are the products Simon will be referring too as used by all body shops. T-Cut ios much too harsh. Think house bricks versus sand grains. Use a microfibre cloth and light pressure by hand. Half a dozen passes, then buff on clean part of cloth. Repeat as necessary. The best way however, is to use a rotary mechanical polisher (mop) which will bring the shine back far better than by hand. We would then finish off with a machine glaze to restore the full shine of the clearcoat. This is what dealers have us do to their showroom cars, even when they are new, to obtain the maximum shine from the clearcoat. (Think of it as exfoliating your skin). It’s also what you do to every car after painting it.
If the scratches don’t respond then as mentioned above you can flat them out with wet and dry. I too would recommend 2000 grit if you haven't done it before, but I have started with 400 grit before and had success. However, you won't get these scratches out by hand! 😳
The general rule if you want to know what can or can't be done is if your fingernail catches in the scratch as you pass over it then it is (usually) too deep to flat out without going through into the basecoat (paint layer) and will need to be resprayed. Just the local area, not the whole panel!
And for the record for the last decade or so virtually all cars, certainly from European and Asian manufacturers, (but not so much until recently from US) have been painted in water-based basecoat i.e. the coloured layer. They then apply a two part clearcoat or lacquer layer to encapsulate and protect this. This applies to solid, metallic, mica and pearlescent colours and is why, through experience, you can remove a lot of surface defects without recourse to a respray. We save our customers thousands every year for this very reason, as well as being able to spray small areas not multiple panels.
If you don't get it sorted, let me know as I’m only in St Albans and would be happy to help.
ATB
Ben