Unauthorized debit order

Your PanicAssist R59 debit will run on 16 Apr 2018 sold by Stokvel Direct ********** 415 ref STOKVH0000*****************416. Respond to SMS for help... This is a message I got from people I never even authorised them to do such! The ****ing part of it all is that where do they get my personal details,especially my identity number! Now I hv to wait up until they actually take that amount and that's when I can complain! Wow! And then they say my money is safe with them