I submitted my VAT return to SARS, on the calculation (SARS) in the first section, one can not put decimal points R0.xx, so when the SARS calculates the amount due, it is less than what QB says, I have done the whole procedure and made payment (don't want to be penalized) and filed on QB, after doing so I relised the totals are different, so when capturing the payment, it says on QB "It's time to record that payment" still. How do I undo the filing on QB and adjust the total?