If I buy my MBP with American Express, does it automatically double the 1 year warranty to 2 years? Or do I have to do something extra to activate the double warranty?
Read the amex terms and conditions, its not complicated.
When you charge the cost of a covered product with your American Express® Card, the Extended Warranty1 will extend the terms of the original manufacturer's warranty for a period of time equal to the duration of the original manufacturer's warranty, up to one additional year on warranties of five years or less that are eligible in the U.S.