Harassment of the wrong person

I am constantly receiving SMS to pay up someone else's account. This company is absolutely ridiculous. According to them I owe Telkom mobile more than R 20 000. I have never in my life been with Telkom mobile nor is my name Tshukula. I used to receive calls from them until the time that the caller spam function was available on my phone, now my phone blocks it automatically. So I keep receiving SMSs. When they used to call, I had informed them numerous times to take my number off their list. Why is there a POPI act when it is still so easy to keep harassing people? Where can this company be reported on how they conduct business? Is this going to help? To write a bad review? It seems not, since I am not the only person complaining here. What really gets to me is the amount of time wasted. After years, they obviously have not found TSHUKULA nor collected the money. PEOPLE, for once and for all I AM NOT TSHUKULA, I NEVER HAD A TELKOM MOBILE ACCOUNT EVER . Loose my phone number. Ref no *** has nothing to do with me. Do I need to change my phone number, which I had for the past 10 years, to get rid of you? I even spent my airtime on them already to phone and try to get someone to do something, but that did not help. I could not find an email address to contact them in writing, how is this possible? A company that cannot be reached via email?