Upgrade done without my knowledge!

I have a Wi-Fi contract with Telkom. At the time of purchase the area I love in did not have fiber coverage. To my knowledge my contract will be ending with telkom in 2022 and I will then be able to move over to fiber. I requested a call back from telkom and the agent who assted me informed me that an upgrade was done in August. No one called me or send any communication that my plan will be upgraded. When I spoke to the agent she informed me to speak to sales as they will be able to assist with my request. She transferred the call and the line cut I requested a call back again and was called when informing the agent what my query is about the line was dropped and today I have not received assistance. My question is why was I not contacted to be asked if the contract should continue or canceled. The contract is for 24 months and that's what I agreed on. Who authorized this to continue?