A Standards Flat Rate can be used for exactly 365 days from activation. The Flat Rate ends with the expiry of this period.
Upon expiry of the period of use, any entitlement to document purchase via the Standards Flat Rate expires. If you have not fully used up the quota of your Flat Rate, the remaining positions will expire. There will be no pro-rata payment. The expiry of a Flat Rate has no effect on the purchased documents.