Norman Bissett & Associates chance takers

I just received an irritating SMS from this so called NBA, which according to my understanding they are attorneys or debt collectors. Where do they get that audacity to tell me that I can pay R1400 to settle "my" R3500 account with Nashua Mobile? Who are these people? Where do they even come from? Do they even know what happened with Nashua Mobile? I am so disgusted. By the time Nashua Mobile went under I didn't even have an existing cellphone contract with them. If by some miracle which I don't know it happens that I still owed Nashua Mobile do these so called NBA even know about prescribed debt? I'm waiting for them to make that mistake of calling me, I dare them.