****! Missinformative procedure on auto

I clicked on one of their ads, entered my name and numbers for a free trial. When I saw that it wasnt free but would start draw money from my account I cancelled the registration. I Checked my mail to see that I didnt get a confirmation mail, that it really was cancelled. Instead I got a mail which stated "2 more hours to complete registration". So i thought, i was safe. Three months later i see theyve credited my account 3 times for a total of 150 Euro! And soon to be 2 months after contacting them they still haven´t responded. If you for some reason accidently register at their site, but cancel, my advise is to double and tripple check that you`ve cancelled, since they have put it on auto to **** people by missinformative mailconfirmations of registration cancellations thats hasnt been cancelled.