credit card amount

Hi

If I change the credit card amount say $100.00 and reduce it to say $75.00 while creating the exp report using credit card buffer, it allows to reduce to amount and save the expense report. I am concerned that what happens to the balance $ 25.00? Should it not give a warning that amount is not totalling up correctly. in TRVPA the CCC=3, so it allows to reduce the amount but not increase it which is good. I need to chnage the amount, to make adjustment for personal expenses.

Any thought?

Thanks