this number rang me; optus advises this number not connected

Thanks Aldi for subscribing me to every bullsh*t possible on line sales product from Seychelles! I've blocked 30 something numbers now they call from this mobile!! How do I stop this?!

Keeps ringing wont leave message.

how do they get our details?

some south african sounding lady said I filled out a survey online so I told her to take me off her list and I swore at her, she said because I was rude she'll ring every hour lol - give it your best shot lady haha