SASSA Change phone number can be done by either calling the toll-free helpline at 0800 60 10 11, visiting your nearest SASSA office with your ID (and an affidavit if you lost your old SIM), updating your details online via the SRD portal (srd.sassa.gov.za) using your ID and application ID with OTP confirmation, or using the official SASSA WhatsApp line (082 046 8553) and following the prompts.
