harassment via SMS

I am constantly receiving SMS notifications from a company called MBD wherein they request that I settle a NEDBANK account.

I have never had an account with NEDBANK. I have attempted to contact MBD on multiple occasions via the number provided ********** 038, but there is no answer. I have alse emailed them and again no response, however, the persistent SMS continue.

the reference number issued in the SMS is: ********** ********** 76

This seems like a huge ****! Im surprised that a company with such a bad reputation is allowed to exist.