Poor service relating to contract upgrade

I am very disappointed in Vodacom! After using it for many years and having 5 lines, I feel now more than ever that I wish I had no existing contract with them. In January 2021, I was up for an upgrade, however, I was still happy with my phone and didn't want to get a new one. I was then contacted by one of their consultants that they could offer a data and minutes contract, which after 3 months, could accommodate a new device should I wish to add one. That is the only reason why I accepted it, otherwise I would have just waited for the initial contract to expire and then subsequently have it converted to prepaid. Now, that I would like to add a device to that contract, they tell me I must wait until the contract expires in January 2023! Even after explaining, they are not budging. They say I should add another line. I already have 5 lines, I have no desire to add another one. I am just annoyed because of the inconsistency of the message that is conveyed. I spoke to another lady in their sales department just like week, who confirmed that they could add the device to the contract. I just hadn't made my decision at that point in terms of the phone I want so she couldn't proceed with the upgrade. The reference number to that call was ***. In today's events, I communicated with these people via Twitter. I do not have a reference number for that communication.

Based on today's events, I would definitely not recommend Vodacom to anyone!!!