Call Avoidance Call Centre Agents

I processed an order online and called the upgrades department as I made an error on my upgrade. The lady who answered the phone sounded puzzled at my query asked me to hold and blind transferred me to another department. <br> <br> Further to that no one at Customer Care can assist me with updating my e-mail address on MyVodacom. All my Invoices for the 3 lines I have with Vodacom are sent to the correct e-mail address, however my Vodacom has an e-mail address stored from 2010 which I can not change online. <br> <br> Please can I ask that someone call me back and assist me.