Bad Customer Service Vodacom

I have sent several enquiries to Vodacom since January 2018 and not once I received feedback. Last week I requested statements on my account, on the mail I confirmed all my necessary details, but they send me an e-mail to confirm the details again. So I rep**** on the mail with the detail and so they send me a new mail to confirm the details again. I rep**** back and said that it is unacceptable, all you ever get back on an enquiry from Vodacom is an e-mail regquest you to confirm your detail, but you never received feedback on your actual request/enquiry, and what did they send me, a new mail to confirm all the details again. I phoned them this morning, was holding for 15 minutes and still it wasn't resolved. If Vodacom have actual people working in their Call Centre and not only computers sending you e-mails, then the people is not doing their work. I struggled for 3 months to get a phone line transferred to my account???