Unauthorized debiting

I am sure our banks or their employees are selling our private information to these companies, Where else would they get it from? I received a sms three months ago to remind me of a R319 debit order in favor of SDLPIONEER.<br> I checked my bank account, but nothing went through. Received the same sms a month later, but nothing went off my account. After the third sms(and the amount now R330)I asked my husband to check all his statements for that amount and there it was on his! We do not know who SDLPIONEER is and we never gave them permission to debit any of our accounts. I think this should be looked in to as a matter of urgency. Clearly our information is not safe in our banks anymore.