How to apply karta pobytu on basis of business in Poland

I would like to know from people who have applied karta pobytu on the basis of business and managed to get the karta pobytu successfully without any problems. Please share your experiences as I would be interested in doing the same. Thanks in advance.

What kind of business - self employed, sp. z o.o or other?

Do ou have any firm in Poland? Which country are you from?

I'm from the UK. Yes, my company - lindenia - and yes, I had no problems whatsoever. But non-EU citizens have it much harder, except Americans, who are allowed to become self employed here.

I'm in Poznan, so I know the score with the Foreigners Office here - and yes, they're sick of me.