Aerosol paint - best supplier please ?

Hi all,

I'm fitting a detachable towbar to the car (OK it's a Roomster - but the Roomie forum is a bit quiet compared to here) and I need to spray the cover that disguises the cut-out in the bumper.

Surprisingly, TPS can't supply suitable paint in an aerosol - just touch up pens.   Paint colour is Steel Grey LF8L.

Whereabouts are folk getting good paint from these days?  The dreaded bay of E has a couple of suppliers but I wondered if anybody has any recent experience of internet supplied paint?  I tried Halfords custom mixed aerosols on the last car and after two attempts I demanded my money back as the colour match was a country-mile away from what it should have been.

I suppose the Dents Away and Paint Technique folk could do something for me but I'd like to have some paint left over in case of future need.

Thanks in advance.

Clem