Unsolicited marketing

I receive plenty of marketing spam from DirectAxis. I have never been a customer. I have no dealings with them. I have tried to opt out via the link in their marketing sms - Not working. I tried to unsubscribe via their call center - They can only search via my ID number and do not find me. But, the SMS's goes to my cellphone and not my ID number. They cant help me and cannot/do not want to escalate. They refuse to provide me with contact details of a Manager to assist me. I contacted them via Facebook messenger. I was told I am unsubscribed. Not so, as I am still getting spammed.

If you search on HelloPeter you will find PLENTY of people who complains about SPAM. What is going on with you?