CANCELLATION OF SUBSCRIPTION ASAP

I was called by one of the Isabella Garcia consultant yesterday afternoon, and she explained a lot of things I didn't understand since I'm currently at my lowest due to losing my parents. Thereafter,I received an sms saying I'm a registered mandate and I honestly didn't approve anything on my bank app. but it now reflect that they will debit R350 from my account as from the 1st of next month. I can't afford such amount,really it's just a lot for me. So I'm kindly asking for the cancellation of the subscription since I haven't received any products from them as yet. I did send emails,please cancel it ASAP.