Continuous Billing

I signed up for a R300 per month contract with unlimited calls.Me and You mobile started billing me for data usage.When i requested that i don't need the data on the line and only for phone call usage, i was told that i had to use data.Since the phone was for my son to use in emergencies the contract did not suit me.I called Me and You mobile to cancel the contract.I was told that they cannot do it over the phone and i would have to go online to there website to cancel the contract.I went to the website and cancelled the contract...and received a confirmation email.Me and you mobile continue to debit my account and the problem is still not resolved.I called the contact number and theres no reply.