Telstra actively promote people contact them on Twitter for support. Like others have experienced they're sending unsolicited SMS spam that cannot be opted out

Telstra actively promote people contact them on Twitter for support. Like others have experienced they're sending unsolicited SMS spam that cannot be opted out from with a simple reply. Regardless of all this - the information they're asking for is not acceptable, especially since they're a telecommunications company that could simply SMS, call or send a push notification to the Telstra app that is installed on your phone. Lastly, please don't make assumptions that everyone can just "pickup a phone a call them".