unresolved matter with Vodacom

Good day I am really very disappointed with Vodacom and the fact that no one is able to assist me. I have contacted the call centre for the last 2 months, and now I’m just fed up The call centre agents cant even assist me with this and everytime I call they put me through to someone else and I have to REPEAT EVERYTHING AGAIN TO SOMEONE NEW THE WHOLE TIME. They keep on saying to take it to a Vodacom store , and NOTHING GETS RESOLVED! I have recently gotten a new phone with Vodacom , I had a contract sim but it is a prepaid simcard at the moment. I KEEP on getting phone calls from other people saying that I have called them. I get random phonecalls at 4 in the morning saying that I have called them when clearly I AM SLEEPING at that time of the morning. If SOMEONE CAN PLEASE ASSIST BECAUSE I AM OFFICIALLY FED UP!