Hi...
Most chips are ok, unless theya re actually small dents, which obviously need a different approach.
I would go buy a touch up kit from MINI, they are about £7 from memory...
AND...I would buy Langka... which is an excellent technique that flattens the new paint you have placed in the chip. Notice I say in the chip? You are best to use a pin to place the paint in the chop and let langka level it. This is similar to one of the techniques that Chipsaway etc use.... and obviously charge a fair bit more.
http://www.langka.com/
Do a Google for suppliers.... I usually get mine from Frost...
DJ