Absolutely! Upgrade/downgrade your server at any time and pay onlt the difference at a prorated amount. Upgrades can be done automatically in the client area.
After you Placed your Order and completed Payment you shall receive Two Mails from our Game Control Panel,1)Server Intalled 2)Account Created >> Open the Acount Created Email and Click on Setup My Account Then Follow on Screen Instructions
Registering on Billing Area will not Create a Game Panel Account, You Either Need to Purchase or A Person with already active server have to give a sub user access in one of his server (Any of this actions will create game panel account) Lastly if have did one that still facing the issue try using forget password or contact support
After you have successfully logedin to Game Control Panel click on your server head to the users tab > Click on Invite User>Give Users Email (If No User with that email exsists it will automatically create one)>Give Appropriate Permissions>Click on Invite User ;)
Tho We are Teir-III Hosting but we aren't immune to user action - If you Havn't Created Backup you will loose you data, It Yes Highly Recommanded to take Backup daily and save them locally as well, Alternatively for Minecraft Server you can use a plugin called DriveBackV2 and use yuor G-Drive as Backup Storage