Requested a copy of my contract!!

I requested a copy of my contract a month ago.The call centre told me to email a copy of my ID to vodacom documents which I did. A few weeks went by I called again , now I learnt they needed a signed letter an email from my email address requesting a copy wasn't good enough.The first 2 peolpe at the call centre never mentioned a letter or what the letter should state. I emailed the letter and a copy of my ID. Three days later I got an sms stating that I must fax the documents that I had already emailed. I did the fax three days ago. I still have not received the copy of my contract. I have been requesting it for a month now. I need the copy to get my phone fixed.I am frustrated and unimpressed and the call center cant help me, I have been on hold multiple times and eventually I hang up which is obviously the aim when keeping someone on hold for an unreasonable amount of time.