Identity theft in Vodacom - know I have to run

Three or 4 Months ago a debit order went through my account for VODACOM. Not having any product or contract with them I send the payment back. Never heard a word from any of them!! All of a sudden I get calls from attorneys and after telling them they have the wrong person the more they phone. I've done a statement at police stating that I do not have any contract with them and that the address on this ********** contract is not at all my address never stayed there. I done the 5 signature proof, I done the certified ID copy!!! I'm 1800km from that address. MY QUESTION TO VODACOM... HOW DO YOU GUYS VERIFY YOUR CUSTOMER DETAILS, DID ANYBODY CHECKED OR PHONE TO VERIFY BEFORE ACCOUNT WAS OPENED. WHY DO I HAVE TO RUN AROUND DOING YOUR JOB FOR YOU TO PROOF I'M INNOCENT DUE TO LACK ON SECURITY ON YOUR SIDE?? I'M REALLY GLAD I HAVE AND NOW WILL NEVER DO ANY BUSINESS WITH YOUR COMPANY. IN REALITY A LOT OF ***** IS HAPPENING, TIGHTEN YOUR SECURITY AND MAKE SURE YOUR CUSTOMERS ARE LEGIT!!! WAKE UP AND SMELL THE ROSES GUYS..... YOU'RE LOOSING MORE AND MORE BUSINESS