said by pandora :

To get around the Comcast caps, we need to purchase a Comcast business account which costs about $60 a month for a starter plan. This is close to what the unbundled price for residential Comcast internet service is. It is about $20 more per month than bundled basic Comcast HSI.

Any user who needs more than 250GB per month, has the option of paying $20 additional or less every month.

said by I pos rep :

Wrong, an official Comcast representative or some official guy from Comcast.net either way has said that it all applies to Business accounts as well. Either way, his credibility on stuff about Comcast is clearly above yours and he says you are wrong.