Just make sure you make a note of the activation code, and put it someplace where you can find it. Saves a phone call. Every time you download the authenticator you get a new activation code.
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"There is an art to flying, or rather a knack. The knack lies in learning how to throw yourself at the ground and miss. Clearly, it is this second part, the missing, that provides the difficulties." - Hitchhiker's Guide to the Galaxy
