You can "Top-Up" with additional bandwidth speed at any time from your dashboard. On your subscription information page, click the "Top-Up" button next to "Extra Bandwidth Speed". You can then select how much extra bandwidth speed you would like to add.

The speed from the "Top-Up" will combine with the speed from your subscription to give you your total bandwidth speed limit. The maximum bandwidth speed limit is 5,000 Mbit/s.

Please note that this extra bandwidth speed is only valid for the remainder of your subscription period. When your subscription renews, you will be returned back to the default bandwidth speed limit for your subscription.