BUNCH OF DAM ******S ******** !!!!!!!!!!!!!!!!!!!!

THEY ARE A BUNCH OF ******S TELLING ME I JOIN THEM AND I OWE THEM R2644.13 I DONT KNOW WHERE THEY GOT MY DETAILS BUT NOW THEY WANT TO BLACKLIST ME THIS IS REALLY BULL****. THEY ARE A BUNCH OF THEFTS. IF I GET BLACKLISTED BY THEM WHAT CAN I DO ABOUT IT? I DID SIGN ANYTHING FOR THEM OR ANYTHING!!!!!!