Complaint Review: paycom net

i went in to one of there sites as a free trial, then i told them by email that i wished to cancel they said they would email me back when done, (well i was) no email back from them and 44.81 in 1 month was taken from my credit card .
i have gone over my limit on my card as they took this out and have had charges added to my account, i have had to block my card and cant get another till i pay what they took ,
I think that this is wrong and not fair on people who are new to the internet like myself
Sharon
Alberta, Canada