I don't think so. My domain's from NameCheap, and I'm fairly certain they have a kind of no-refund policity, and I assume the same applies to changes. I suppose all purchases are final.
Ok, it started off a few hours ago. Everything was normal until I couldn't access my site. Since my site was hosted by a reseller (I got it for free and unlimited 🙂) I wasn't too sure about the status and other stuff. Anyway, once I couldn't access it, I then checked the support site for it, and it gave a 404 error, meaning the site was deleted and also the domain. That got me pretty wound up, and quite angry that no notice was given via email. So, that domain I had was a gift, so I don't have any control over it, and also, the company that gave it to me also doesn't have control over it :L. So, I decided I should by the .net version of it. I got everything configured and it was all up, and what do you know, my site was back up again. So yeah, pretty annoyed now.