Mess in NTS (Notice To Schedule)

With a hurry to finish the papers, I started giving next 2 papers (REG & AUD) and paid the amount also (My height of optimism!!). After getting the results of BEC, I realized that this will increase $75 application fees along with the regular paper cost. So, I don't want to loss money again, waiting for the result of FAR (Where is the optimism??). Started preparing for the next exam AUD.