Locked into contract upgrades under the guise of “changes”

On 3 April 2024, I received a call from Selban Naidoo with reference number ***0. Apparently, products on certain numbers of mine were being discontinued and I therefore needed to change them. I repeatedly asked for confirmation that these were changes to existing contracts and not upgrades. I did not want to upgrade. When the manager who had to authorize the “changes” spoke to me, I asked him also to confirm that these are not upgrades and he simply had me speak to Selban again. Once again, rather than a simple answer, Selban explained. I received an sms at 2:34am today confirming the upgrade of one of the numbers and that the contract has been extended to 2026. This is not okay. It is not what I wanted.