Spamming me with the sms's

<p>Mtn stop spamming with sms's asking me to rate the sim swop. Ive been getting the same sms every single day for the last few weeks! Ive taken sceenshots of these as well. Ive already tried to make it stop by doing the survey, rep**** stop, and still Im getting spammed by you.</p> <p>Please make this stop. 14 of the same message already!</p>