Caller: Anna - Telstra

Claimed to be calling from Telstra and offering 40% off my mobile phone plan. I don't have one and said only have home and internet she proceeded to say she would apply discount to that and send me an email to verify. I didn't receive anything. I rang the number back and to me if it was Telstra it would be automated to direct call and it went straight to Anna the person who called me.
Also I'm sure Telstra would just apply the discount if I was eligible for anything and I would get notified via their app / statements I receive.

Called at 21 13hours (7:13pm)Claimed to be from Telstra and was providing a 40% discount on my monthly bill. I have pre-paid therefore no monthly bill.