How To Redirect A Site?

Here's some background so you know where I'm coming from:Okay, so my site chromlea.trap17.com was recently moved to chromlea.com because I was told that the Xisto.com subdomain was being discontinued. I was scared to have the move made, because it's my site that makes me the majority of my income and losing it could have some real consequences for me. But since I didn't have a choice, I went with it.I was told that there would be redirects in place so anytime someone clicked on a link and arrived at one of my old pages, they would be automatically taken to my new domain (the file structure was left the same). Well, the site was moved, but the redirects haven't been added, so no one is finding my site. This is going on for a day and a half now and I'm worried that Google is going to deindex my site in the mean time, so even if redirects are eventually put in place, there will be no more of my links left in Google to be redirected.Now, normally I wouldn't be so scared about the site being unavailable for a day and a half, but a week ago, there was a server migration that also took my site down for the better part of two days. With my site being down for so much time this week, it's got me really worried about Google and being deindexed or at least losing my top rankings for my popular keywords.I realize that when you move a site, 301 redirects are the way to go. The problem is, I have no way to add them myself, because I no longer have access to my old Xisto.com subdomain's .htaccess file. I also can't put a redirect through my cPanel, because neither cPanel (chromlea.trap17.com or chromlea.com) shows the old chromlea.trap17.com domain, but rather both of them now show chromlea.com as the main domain.I've sent in a ticket to support reminding them about the redirect that I was told would be added to my old site, but I'm sure they must be swamped with everything they are moving/migrating, so I haven't heard back. Which is why I'm here asking all of you if you know of a way to add a redirect so that Google knows you have moved if you don't have access to the old site? I've searched the Internet and haven't found anything yet