Buying a new host for existing site

I have a blog hosted on bluehost which is expiring within a week. So I want to buy hosting service from another service provider. But as my site is already hosted on bluehost so when I am trying to buy a new hosting product, new hosting service provider is saying.

Single Domain Linux Hosting (USA-TX) for mysite.com is already being used by someone else. Hence this product cannot be added for mysite.com

Now, what to do?

You are independent to move to any hosting, any time. That message is weird and doesn’t make any sense.

You may check another hosting. Definately, you can move without any problem.

Last year I switched to Bluehost and I did not face such issue. But this time I do not why such annoying message is showing on that new hosting service provider.

Please contact its support. They can assist for resolving the issue.