During checkout, instruct your customers to pay cash on delivery and specify text and information as required.
Go to your Profile Icon (bottom left) > Settings
Select Payments from the menu.
Ensure you are on the Payment Methods tab
Under Pay Later, on Cash On Delivery, click on Enable and a modal will appear.
In Label, enter the text you want to show on Checkout.
In Instructions, enter the text you want to show on Checkout.
Click Save.
