Hi Tana, I had the same issue-I emailed the knot help people and they told me that they use an outside vendor and the site url can't be changed. If you're that unhappy, i would recommended picking a different site to use to host your website (my cousin used mywedding.com and his was really easy!!)
I haven't set mine up yet but I was thinking of doing something like a custom domain with masked forwarding through godaddy.com. If you don't mind a small investment (like $20-30) this might be an easier option. You can buy the domain for just 1 year and forwarding services are usually pretty cheap.
Re: help! How can I change my knot website url?
I had the same issue-I emailed the knot help people and they told me that they use an outside vendor and the site url can't be changed.
If you're that unhappy, i would recommended picking a different site to use to host your website (my cousin used mywedding.com and his was really easy!!)
Good luck!
Vanessa