Mind Blowing Business Practices

Hi, So on the 18th of February 2019, I upgraded my contract to a Sim Only Deal, as I am still happy with my current phone and there was no need to get a new telephone. Now the need for a new telephone arises and thought that it would not be a problem to just add a phone to my contract... And that's were the Vodacom comedy show started. I phoned the store and they said no they cannot do it, thus just before phoning, I spoke to a lady via your online chat platform whom advised me that this would be possible. After then speaking to the retention department to try and figure out if they can assist they also said no, I have to cancel my contract and pay a penalty of, wait for it, over R7000.00 for a sim only contract for cancelling prematurely. Now, if this is the case with Vodacom, I company whom I actually want to pay 3 times more per month for a new cellphone than what I am currently paying, completely blows my mind. I did not think that "SA's leading network" can be this never minded about their customers.