Based on the type of plan you have rented, an amount of data (measured in GigaBytes) is allocated to your account. This is the amount of data transfer between your site and anyone that requests the data from your site per month. At HostingNZ, we won't cut you off if you exceed that amount, but we will bill you for the additional usage. At HostingNZ, additional traffic is charged at $4 per GigaByte over the account limit and will appear on your next account. We will send an email to you when your disk space reaches 90% of capacity.