Q: Mail inconsistencies between iCloud.com and Macbook Pro

Hello,

I have a Macbook Pro with iOS 10.9.4

Some time ago I changed my default email in iCloud.com from @yahoo.com.mx to @gmail. My Mac is constantly asking me to log into iCloud with my old email (@yahoo.com.mx):

If I go to the iCloud setting in my Mac, the same email is as the default:

If I try to change it in Manage Apple ID.., it sends me to the iCloud.com page, and if I try to login with the old one, I can’t get in…

And if I log in with the new I can get in, but if go to the account setting to erase the old email is not there anymore, not even in the secondary emails…

Can someone help me?

By the way I have the same problem in my iPhone 6S if I try to change it there.

Thanks in advance

Cheers