Signed up for Clientele Perks without consent

If I could rate a zero I would but I'll give you a 1. I was signed up for clientele perks and money was taken out of my account without me consent. I was dragged into signing up at the mall although I didn't want to. After the lady was done with me, I asked her whether any money would be taken from my account and she said "No, it will never happen." She also told me to install the app when I get home and obviously I didn't because I didn't want this. This encounter happened months ago by the way. I proceed to call them after i see that money has been debited from my account and it takes years before they answer. Everytime an agents answers me, I'm transferred to another one and I have to explain my situation a thousand times. When I get to last agent, she tells me that nothing can be done for me and she proceeds to tell me that "your money will never be refunded and infact we are going to debit again on the 1st of June, so if I were you I would redeem all the vouchers and perks for this month because money was taken from your account." I've never been this shocked in my life. When I asked to cancel this thing that they've done, I'm being told that I was supposed to give a 31 day notice. Just imagine. The service was horrible and I'd love my money back. I'm just a student for goodness sake.