Billing is based on the total transaction authorization records you aggregate in the Chargeback App across all merchant accounts you connect. Each approved transaction authorization is counted as one record and is used to measure your processing volume. Choosing a higher minimum annual subscription fee allows you to pay a lower per record fee. For example, if you're on the small plan and have 22,500 transactions in a month, you will be billed an addition $625 for that period ($0.05 * 22,500 - $500).
