I upgraded Canvas to premium subscription with my current Gmail

[mahadev]

I upgraded to premium using my  G-mail "old@gmail.com" . 

Now, I want to switch to the G-mail "new@gmail.com" to maintain my subscription without interruption. From now on, I'll use "new@gmail.com" for Canvas access, and make sure "old@gmail.com" no longer has access to it .

Pls advise here and share the step by step process. Thanks in advance!

Thanks,

Mahadev