I need different email accounts for personal, business, etc., but I can't create an email account with the same phone number as another account. This makes no sense and I want to turned off.
The reason is for security. If one account is compromised, they could all be on the block if they have the same contact information. A lot of other email providers are now doing the same thing. You can, however, opt to use another email address instead of a phone number. The email address would have to be from a non-Comcast email provider.