We apologize for the inconvenience. My own website has been down for several days. Unfortunately there is no way to retrieve your files until this migration is completed. It is always a good idea to download and store local copies of backups on a frequent basis. I usually do it daily. As for hosting providers, I personally use and highly recommend x10Hosting. It is the best one I know of. Even with the current downtime due to migration, I know I will be getting improved service very soon.
Regards,
Carl