Unfortunately it is not possible to change the domain that was ordered for a product. The product is by default locked to the domain.
If, however, you wish to order another domain, you can either order a new webspace as you would normally and let the "old" webspace expire.
You can also order the new domain as a DNS service and then use our "Swap products" function from control panel, making the webspace and DNS service switch domains. This way you can utilise the rest of the already payed for webspace period, for the domain you wish. Note that all data will be erased when you swap products.
Article from the support category: General