Every Payment Breakdown must be Authorised and Verified. The customer Authorises and the supplier Verifies.
If the figures entered by both parties are the same, there is a Match, and things are tickety boo.
If the figures differ then there is a Mismatch that needs to be resolved.
If there is a Mismatch, both parties are alerted so that they can check the figures they have entered. Once any mistakes are rectified, and a Match occurs, then the payment can be calculated.
