If the letter you are referring to is the one you get when you have your credit card account or bill delivered to your home, then the best answer would be most likely the second one. The letter provides the recipient information about the condition of his own bank account.
1. A friend is someone who knows all about you and still loves you.
2. The best and most beautiful things in this world cannot be seen or even heard, but must be felt with the heart.
3. A soulmate is someone that just gets you. It's a connection of minds, a mutual respect, an unconditional love and a total understanding