still sending me SMSs regarding payments for a rounder that does not work

can rain please stop sending me sms */reminders to make a payment ,i have complained i have called and email and nobody bothered to assist me, also added a few complaints on hello [peter still no assistance what is it that do they want from me, charge me for something that does not work . please stop sending me SMSs rain south africa i am not interested in your service again. kind regards