Misled by telkom- paying for deactivated sim

I have been calling for the past 4 days now and every time i call i have to wait 1 hour for an agent then, when making arrangement to pay for my contract and activate my sim the agent gave me an amount of R100 too deposit so i did, when i called back to activate the sim they then tell me i have to pay R550 for my sim to be activated, this is clearly not my fault as i was misled by the agent but telkom still refuse to help me its been 4 days now that i havent got any feedback but they said they will call me the same day and it doesnt take days to listen to a call recording to find out whos wrong, worst network ever, rather pay extra n go with vodacom where they value they clients. I would like to even cancel this contract n go to another service provider.