Where did you get my contact information and why are you spamming me ?

So since last week I started receiving SMS's from Nedbank advertising their credit cards or what not. I never asked for this I never subscribed to this. Contacting me on my personal phone and sending me unwanted adverti*****ts is violation of my privacy and where the hell was my number acquired ? You guys should know better and that is is *******. Get my number off your spam system please otherwise I will come scream at you guys in branch. Once Ive been removed from your system and am left alone I will remove my review.