Supposedly, You can't use the term 'Woo' in a domain name -- Help!!!
I just got a cease and desist from a law firm representing Automattic for using the term 'Woo' in my domain name... Not even sure what to do! Help!
I think your choices are (a) find a different domain name or (b) talk to an attorney. You don't say what your site does, but if it's very different from e-commerce, you might be able to successfully fight this [1]. You will need a lawyer, though, and some amount of money.
Good luck!
[0] https://ma.tt/2015/05/woomattic/
[1] http://www.nolo.com/legal-encyclopedia/is-it-trademark-infri...
Part of the problem is that we distribute official WooCommerce extensions under the GPL General Public License... It's a legal grey area for sure.