Unhappy and disappointed

I contacted vodacom call center agent to downgrade my cell phone numbers that qualified so that I could reduce my monthly bill. Then after 3 weeks or so I received a call from a call center agent saying that I can MIGRATION four of my cell phone numbers and even safe more money monthly on my bill. But is not true all four of my cell phone numbers was upgraded and now I sit with a monthly bill I can't afford. I spoke to 3 different call center agents and all of them have a different story to cancel / recline this MIGRATION QUOTATIONS. Please sort this mess out.