I read users' online reviews of DNTM/Blur, and some seem to love it and some seem to hate it. There doesn't seem to be a consistent opinion of the add-on.
It does seem to be an international service.
I've never used it myself, so I can't give an honest opinion about it. In general, I would say if you aren't comfortable with an on-line service or product, don't use it.
Did your credit card company get back all your money for you? Did the card company say that DNTM was the reason for the theft?
It's kind of hard to analyze this situation without a complete chronology of exactly what happened, and who said or did each thing. I don't want you to share too much in public here though.
I would suggest get everything straight with your credit card company and the issuing bank first. That is, get your money back, cancel the problem card, and get a new card issued.
If you are uncomfortable with DNTM, then get rid of it.
You can keep your gmail account but you might want to set up a second "throw away" account that you can use for shopping only. That is, keep your personal email and your shopping email separate. That way, if for some reason you have to later close the shopping email, you won't lose contact with your family and friends.
I'm going to start a general thread about DNTM at AD, and let's see what happens. (I won't mention your name.)
