Upgrade mess up

I am so upset with Vodacom at this point. My contract is due to end on the 25th March 2026, I then decided to do an upgrade instead of canceling however my request has been pending for a week. No feedback from Vodacom. When I call in, the agents can't tell me anything and they promise a call back which they never do.... I'm now in limbo, don't know if my upgrade is happening and if it's not happening then Vodacom better end my contract on the 25/03/2026 as instructed. I need a response on my query since your call centre is useless.