Vodacom customer service

For the past 6 months I have been trying to get assistance from Vodacom to perform a sim swap as I had lost my phone. I was told my number was a contract that belonged to a company called rmcs and was instructed to call them. They told me the contract was cancelled and my number is back with Vodacom and they sent me proof. I was instructed to buy a contract replacement Sim card and I did but to this day I received no assistance or a reason as to what's the problem, I have sent countless emails that they received but no one has contacted me. Frustrated.