Typical of antiquated "non service" based companies, Stamps.com insists that you provide your credit card information up front before you even get to find out whether the service will work for you. I registered for this service one night in desperation because I was unable to log onto USPS.gov. I immediately had problems with the wonky windows 3.11 style console and tried to chat with someone there to get it resolved. That was absolutely no help at all and I told them so. I closed it in disgust and have never opened it again. Even if it had worked, there was no fundamental benefit to it over and above what I could get from the post office for free.
Today I opened my credit card account online and saw that they had just that day pushed a temp charge through to my account. I immediately emailed them and told them that I've never once used this service and requested that they close the account, discontinue billing, and reverse the charge for a service that I never used and did NOT WANT. In truth I had no idea that this was even a subscription based service.
There is no mechanism for closing an account on their website (as any ethical subscription based company would have), and they refused to close it via email, even though the email was sent directly from my account while logged in. They also refused to credit me back for the service even though they know that I've never once used it. Taking money from people when you've done nothing for them is unethical Stamps.com.
You know a company sucks when you type [company name] REVIEW and the first link that comes up is ripoffreport. I just wish I'd typed that before typing their URL in my browser. When I filed the dispute with my credit card company, i was told that they're listed as a "telemarketer" which I think that says volumes.