Understanding Billing for Your Pro Subscription Account

Hi just signed up for a subscription for a work account but I am a little confused on how the billing works. I signed up for Pro using my work account email, aliciao@halasystems.com. It says I will get the first 7 days free but then will be charged 34.99 monthly following. However the drafted invoice for October 9th says $0 dollars. When will my corporate card be charged the 34.99 then?