No correlation at Vodacom at all?????

I really really am disappointed. I named Thabang Mphanama as a king of service on my last report because of how he helped me. On that assistance, he said that he had at least put on record my final instruction to cancel the contract and return my phone to prepaid once it comes to an end. He works at retentions and his word should be true to what he should have placed on the system. Today it is day two of harassing calls from Vodacom trying to upgrade me. So let me make it clear to someone who is tasked for high-level service. I WILL NOT BE UPGRADING MY CONTRACT WITH YOU. PLEASE TAKE ME BACK TO PREPAID on the last day of the contract!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!