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Continue to ChatSMS Spam: POTRAZ's regulatory notice to mobile operators https://www.techzim.co.zw/2013/12/potrazs-notice-to-mobile-operators-on-bulk-sms-and-spam/
SMS Spam: POTRAZ's regulatory notice to mobile operators https://www.techzim.co.zw/2013/12/potrazs-notice-to-mobile-operators-on-bulk-sms-and-spam/