How can I sue vodacom for *****?

On the 21st of May 2025, I did online application for a phone unfortunately I wasn't reachable for approval so my application was canceled and I was advised to apply again at the next vodacom store. Then on the 4th of June I received an email that said "my profile is generated and vetting has been approved" and I never spoke to any sale consultant on 4th June or previous day that I would like to make another application online. Meaning someone who works at vodacom made online application under my details without my knowledge, that's a ******** offense. She committed a ***** & yesterday on the 5th of June when I went to the store unfortunately they couldn't assist me because I have a already have application online which I didn't even know anything about it.