You can select the hosting provider you wish to use, and as long as their setup can run WordPress, then there shouldn't be any issues. You can read more about system requirements in the
FAQ page. Our licenses allow you to install the theme on multiple websites/domains and yes you can change hosting or domain providers as you wish as they are unrelated to the purchase you make with us.
We unfortunately can't vouch for coupons posted by other websites as being valid, as often these are posted by people who are simply trying to drive traffic to their site. The only promotions we currently have are those related to W
ordPress hosting and
AppThemes translations. Thanks.