For what it's worth...I got a response within about ten minutes. I fully admit that it is almost certainly a "form response" about Bitcoin and nearly everyone will get the same one.(Although the grammar of the first two lines doesn't seem as polished as the rest and may not be "form").

The point is...someone at least paid attention to it...read enough of it to recognize what I was writing about...responded...and no doubt put a check mark somewhere in the tally of topics that concern customers.

Thank you for sharing your thoughts regarding the Bitcoins.

I would like to let you know that we currently don't accept bitcoins as your payment method for your order, I believe that this is a disappointing news.

However it's a good thing that you've brought this up to our attention and we'll consider your feedback as we plan further improvements.

Strong customer feedback like yours is very important in helping us continue to improve our website and services. I will pass your message on to the appropriate department in our company. We always want to know how our customers react to all aspects of shopping on our website.

One of our aims at Amazon.com is to provide a convenient and efficient service.

We look forward to seeing you again soon.

Best regards,
Lara T.