This is probably because you began service with SOVA in the current year. Below is a hypothetical example, to help you understand how invoices within the first year of service can be prorated:

• Let's assume the date you began service was Oct. 10, 2016.
  
• Your annual subscription would be active from Oct 10, 2016 through Oct 10, 2017.
  
• You receive an invoice from SOVA in early November 2016 showing an amount due for the 2017 year.
  
• The amount due would be a prorated amount to cover the time period from Oct 11, 2017 to Dec 31, 2017, and may include adjustments based on contract specifics or a change in the subscription fee for the upcoming year. Any adjustments will be defined on the invoice.
  
• After the payment is made, your account will be on an annual subscription cycle beginning Jan 01 and running through Dec 31.
  
• Continuing with the above example, your next invoice from SOVA would be sent via email in early November of 2017. This invoice would be requesting payment for your 2018 subscription year. The invoice would show a due date of Jan 01, 2018. We try to send invoices early to allow for any delays in processing on our clients side. Please note, if monies are not received for your account by the January 1st deadline, your services could be affected. If for any reason you are unable to make your payment by January 1st, please contact us so we are aware of the issue and can make alternate arrangements as needed.
  

If this doesn't describe your situation fully or you have additional questions, we are here to serve you. If your question is not urgent, please take advantage of our support system by opening a ticket and select "Billing". For security reasons, please refrain from including any credit card details in your ticket comments. For urgent issues, or to direct a question directly to our accounting staff, please contact us via email at accounting@sovasystems.com.