We are requesting that when we generate payment requests that it is the lower of the amount the outstanding amount is at the start of the week vs the amount that was owing when you generate payment requests. This way if there any situations that cause the amount owing to increase (eg CCS changes) then the lower amount i taken that was advised at the start of the week and then you have time to investigate the issue and the larger amount is sent to the account holders the following week so that they are notified. This request for us is about 4 yrs old