What Happens With the Account Content and Settings?
When you upgrade your hosting plan, all your files, emails, databases, and configurations are automatically transferred to the new plan - you won't need to move anything manually!
If you are upgrading from a Web to a Cloud hosting, or from a WordPress plan to WordPress Pro, you will also get dedicated resources, including a new IP address. Therefore, you will need to update the IP address of your hosting account wherever you may be using it, such as:
Pointing a domain or subdomain via A record
You can find your new dedicated IP address on the account details page after the upgrade is completed.
NOTES:
The upgrade can take a few hours to complete
If you update your domain's DNS records, consider up to 24 hours for the changes to propagate
What Happens With the Payment of the Previous Plan?
When you upgrade to a more powerful plan, your investment is kept by converting it to the price of your new plan, extending its expiration date.
Consider this case as an example: let's say that the remaining time on your current plan is worth $50, and the plan you are upgrading to costs $5/month. Once you upgrade, you obtain the duration of your purchased upgrade along with an additional 10 months derived from the conversion of your current plan 😊
Additional resources:
If you want to test before upgrading, you can temporarily boost your account