No number, no way to cancel order,

i began ordering free trial on Facebook but decided it wouldn't be fair knowing i couldn't keep order going. So closed without  finishing, then my phone rang it was a rep. Of company. I explained but she tslmed me into ordering a full month she said but two weeks trial. I asked then return unused product she said no it was mine to keep  just ca numbet in pkg and cancel before end of two weeks. I havr been trying to find  away  to contact for a week afger products arrived to accure i didnt get charged. No luck today i was wuickenrd to try Google search lead me here. I even put a notice on Facebook but no realy yet. Hopefully i csn find zezy her to cancel and if there is a chsrge on my bank account my bank can collect it back or sue company. I need help looks as though a lot of us do can we get help from here to cancel