3) As usual, LP is contradicting itself!! From the web-site:

Mileage Expiration
Mileage does not expire for LatinPass members who remain active. If your account does not have at least one qualifying activity in a 36 month period, all mileage earned will expire. Qualifying activity is defined as accruing mileage credit on any LatinPass participating airline, as well as accruing mileage credit with participating hotels, car rental companies, and other service providers offering LatinPass mileage credits. Transfering mileage to a LatinPass account is not considered a qualifying activity.