If you need to update your CC details for your Motifo hosting the following procedure should be followed:

go to: https://partner.motifo.com.au/

Use your email address that your Motifo receipt usually goes to and click on forgot password, once you have reset, login then

In the top righthand corner click on the cog and select billing.

If you have any issues just email: support@motifo.com.au