All plans run by calendar month, and therefore charges are made at 12am UTC on the first of every calendar month.
For your first month, you'll be charged a prorated amount based on your usage at the beginning of the next calendar month. For example, if you sign up for the five hour plan mid-month ($13 per hour rate) and upload three hours, you'll be charged $39 for that calendar month.
For all calendar months after your first month, you'll be charged based on the full plan rate.
We use Stripe to process payments.