Change premium licensing details

Hi there Tom and co,

I was wondering if you can help me out with something. When I bought your premium plugin, I put in my own personal details when I registered. As it turns out, I really should have put in the corporate details into the account.

I have updated my profile as much as I can but is there a way I can update the username from 'coolwebs' to 'slqweb'
I have updated everything else - but this last one thing I cannot do from my end.

Thanks