Welcome to Vodafone Community
Apologies for the delay in responding. To add or remove numbers on your Sure Signal device you'll just need to send an email to the following email address - firstname.lastname@example.org
You'll need to include the below in your email :
Just to note that this request will replace your current list so you'll need to ensure you list ALL the numbers you wish to have registered.
If you've any further queries just let us know.