Vodacom poor service

For black friday vodacom ran so much specials.. and i decided to get a cellphone contract.. i app**** for a double deal.. a phone and a watch ... i had to wait for a week due to now stock when i collected my phone and watch vodacom signed me up for the wrong deal, where they charged me for the phone separate and the watch separately. I went back the following day and i told the ssles lady and she ssid they will rectify it.. i sent them an email as well.. she told me she will sort it out and change everything to the correct package (which i spp**** for).. my furst invoice i received was incorrect. Watch seperate and celpho e separate.. i spend hours on the phone with theire call centre. But with now luck.. i went back tobthe store AGAIN and the manager (SHEVON VODACOM EAST LONDON VINCENT) told me that they cant help me beacause its past my 7 days.. she said she will phone me back .. i eventually got a call from her with the siluation that the sales lady will pay the difference of the over charge directly into my vodacom account.. but guess what .. NOTHING.. NO PAYMENT NO RECTIFICATION.. I still pay for the wrong contract.. and if i dont pay my account gets blocked..