Unsolicited Marketing Prohibited by the Electronic Communications Act

Received an sms this morning from +27 *** at 09:01 "Want the latest vehicle tracking technology? Get Fidelity SecureDrive from R89pm. Reply YES (free) for a callback. No to opt out. T&C's." As this is a violation of the Electronic Communications Act, under the Consumer Protection Act I rights 2, 4, 5 and 9 and the Personal Protection act, I require the following information. i) Who sent this sms, ii) if your company sent it, where did you obtain my number from as it is not in the public domain, and iii) what other personal information is linked to my telephone number. Please put me in direct touch with your compliance officer as this is a violation and not merely a complaint about service.