Un-solicited sms's received from Pep Loyalty Club

I have been receiving un-solicited sms's from Pep Loyalty millionaires Club, for almost 1 year, that my cell number has been entered in a draw etc.<br> <br> I have contacted Pep stores customer services both by email and telephonically complained, that I was constantly receiving unsolicited sms's that my cell number has been entered in the latest draw, and what the winning numbers are. I confirmed that I did not want to receive these unsolicited sms's anymore, however, I am still receiving these unsolicited sms's.<br> <br> Why is Pep stores Loyalty club still sending me unsolicited sms's?