Cell c call centre not helpful

In the past 48 hours I have called Cell Cs call centre 7 times requesting a copy of a contract I took last year. The device is faulty so the manufacture needs the contract details before fixing. I have been told the team leader is sending the contract on all seven calls. I still don’t have it so I’m stuck using someone else’s device at the mall waiting for the contract. Honestly I have never had this experience with Voda com or Mtn or any other call centre, it’s like they have to promise you they will send it just to get you off the line, I am definitely not upgrading when my contact it ends, The service is horrible