To change your rental due date, please log in to your account https://creditladder.co.uk/login, go to Your Tenancy > Manage > Update Tenancy Details and follow the instructions.
Alternatively, while logged in, you can go directly to the page using the following link: https://creditladder.co.uk/dashboard/rent-change
This amendment request will then go to your landlord/agent for review. Once approved, all will be updated in your account.