How soon do I have to pay to finalize the booking? 
To finalize the booking, you must pay a non-refundable deposit (40% of the entire balance). If the deposit is not made then the booking is not considered finalized. The remaining balance must be paid one week before the event. 

What if I need to cancel or postpone the event? 
If you need to cancel the event, then you would lose the non-refundable deposit. 
If you would like to postpone or switch the date, you may do so but you would still lose the non-refundable deposit as it only applies to the original date you selected.