******* and continuously ****** from by clientele

Last month under the guise of two clientele people at town saying there is a special they seeing my bank card asked my ID and even clicked on my phone saying it's to check the sms for the competition. When told I would be billed and them denying it I was billed the next day and couldn't dispute or reverse the debit order but I stopped it at a bank as I was unable to go to town. A month later even with the stop order they still took another R250 this February which was my only means to go back home to pretoria for schooling forcing me to get a debt in order to go to town today in order to get back my R500 by going to clientele , how can they register a policy for me without my consent and confirm it, denying any dispute to reverse it on the bank and also continue to take it after a stop order was in place when I neither work or have parental care over my finances. I'm stuck now