Suspicious SMS

<p>On December 21, and 22  I received the following SMS :  "the payment on your NHLS acc is overdue.  iIt is critical that payment is made today or call MBDCS on (011) ********** .  Ref: ********** ********** 04" .  On 21 December the message was sent from ********** 473 and on 22 December from ********** 064.</p> <p>Since i do not even know who or what NHLS is I assumed that it was either a phishing message or the senders had the wrong cell phone number.  Following the second message i sent a reply stating that they were sending the messages to the wrong number.  I did not receive a reply but instead the same message for the third time (23 Dec) from ********** 964.  I am posting this as I now believe that this is nothing more than an extortion  racket.</p>