As Sam said, we may leave this open until right up to the date, and if you're paying cash on the day, that's fine (unless, of course, we've filled up by then).
But if you are making an EFT or Cheque payment, you NEED to make sure it is in by close of business NEXT Tuesday (the 8th of December) so we can vaildate that the money is in the SAU account. Sometimes, depending on the bank, it can take up to 3 days for a transaction to show into an account, so we have to make allowances for this.