Two keywords for two different cards on the same phone. How?

I want a keyword for business contacts and a keyword for personal/consulting/church contacts. I would not send the same info for these two types of requests. How do I do this?

Since I'm at SxSW this week, I'd really like to promote this in a business context but I signed up with a more personal username.

Can you help me setup a business account for a phone number that already exists?