niggia on "Right Web Address in Address Bar"

Hi Dears,

I've bought your premium access and I've transferred my dns domain (twister-racing.it) to my wordpress site (twisterracingteam.wordpress.com). The re-addressment works, but in the address bar the shown address is twisterracingteam.wordpress.com instead of twister-racing.it. Which is the problem? Can you tell me how I can solve it?

Let me know

Thanks in advance

Best Regards