Good morning/afternoon Insert guest name
As promised here is your courtesy reminder email to let you know that your final payment of £… is now due on or before the Insert date for your upcoming holiday in 8 weeks time.
The payment details are as before to: Insert payment details Name/bank/sort/account.
If you can drop me a quick message to let me know when this has been actioned so I am able to confirm safe receipt for you that would be much appreciated.
Thank you in advance for your payment and co operation.
Kind regards
Insert name