Biller Code
26500
Merchant
Castle Security
Castle
Payment Methods
Biller code 26500 is the BPAY code for Castle Security (also known as Castle). You can use this code to make payments through any Australian bank that supports BPAY.
To pay Castle, log into your bank's online banking, select BPAY, enter biller code 26500, your customer reference number from your bill, and the amount you want to pay. Learn more in our step-by-step BPAY payment guide.