The first thing you should do is check the spam folder in your email inbox. Sometimes she may have ended up there. However, it may also be possible that the email address you provided was incorrect and that is why you did not receive an email. Unfortunately, it's enough if a single letter is wrong or a number has been transposed. If you have not received a confirmation email, write us an email info@kohlenstoff-12.com and we will send them to you as quickly as possible.