Dear Bank of America,
It may surprise you to hear this, but I actually know how to use a credit card. In fact, I manage to use my very own Bank of America credit card several times a month without any difficulties. I pay the bill every month too, and I've redeemed cash rewards on multiple occasions. So, it's really not necessary for you to call me every three weeks to explain how my credit card works. Perhaps you have some customers who forget such things in the course of a few weeks (although I question the wisdom of letting Alzheimer's patients retain their credit cards), but I'm not one of them. I doubt many people in my demographic are.
I can understand your desire to improve your poor reputation for customer service, but this seems like a very ill-conceived way of going about it. Hassling phone calls that insult my intelligence are an improvement over the putative customer service provided by actively evil companies like Gateway and Amtrak; however, simply leaving me alone would be even more of an improvement.
If I sustain a sudden head injury that causes me to revert to the intelligence of a five-year old, I'll have someone let you know, and then you can call and explain credit cards to me to your heart's content. Until then, please take my regular use of your credit card as a sign that I know how to use it.