Vodacom Is the worst and have rude clients agents

I have never being so frustrated about doing a simple thing called "Swim Swap". I did an upgrade with Vodacom and received my goods on the 9th Nov 2019. Today its the 13th Nov 2019, Vodacom is still battling to do a "Swim Swap". I have called the call center more that 7X (mind due each consultant takes aboout 30-1hr), having to explain one thing to many times, system is slow, rude call center agents etc. The call center even send me to Vodacom store to help, they are battling, getting the same error that no one seem to be able to understand. Even their supervisors don't know what to do. Different methods have tested but all failed.

I"m done with Vodacom. Today I called in to return the device, after the confirmation is done. I' am cancelling the contract.

Your call center client agents are so rude, and have no remorse or understanding of their clients. What is worse, lots of them don't even know how or understand their work.