Read the full knowledgebase article and know how do you upgrading your service or plan.

Portal Login Explained

If you login to the portal website using your email address and password you can administer all your VPSs, change account details, place new orders etc.

If you login to the portal website using your VPS username and password you will only have access to manage a single VPS, no mention of VPSBlocks is made, and no ability to modify your account or order services.

Upgrading resources

If you have an existing VPS and would like to upgrade resources, you can do so by following these instructions:

1. Login to the https://portal.controlmyvps.com.au using your email address and password

2. Click on 'Virtual Machines'

3. Click on 'Manage' next to the machine you wish to modify.

4. Click on the 'Modify' tab

5. Click on 'Upgrade/Downgrade Options'

5. Here you can add extra RAM, CPU Cores, Bandwidth and Disk Space. You can also select a different operating system, however, for the new operating system to take affect you must reprovision your VPS (see: https://www.vpsblocks.com.au/support/Knowledgebase/Article/View/85/0/how-to-reprovision--reinstall--setup-your-vps-again )

All upgrades excluding SATA disk space are completed automatically.
You also can set desired time for upgrade at the Upgrade/Downgrade dialog page.