Bunch of *****_A|_s

I visited the Telkom branch at The Glen on 27th April 2015 and app**** for the Do Uncapped Basic Internet and Data plan at a cost of R344.00 per month, which will also be added to my current Telkom telephone monthly cost of R206.00 per month, totalling a month cost of R550. Its now almost a month and my Internet and Data plan is still not activated and I've trying calling Telkoms 10210 number a number of time, spoken to a number of call centre agents and my Internet and Data plan is still not activated. I then received my monthly bill on 8th May 2015 for an amount of R683.13, which is totally different to the amount I agreed on the 27th April 2015. Please can someone from Telkom wake up and sort this out, firstly when is my Internet and Data plan going to be activated, secondly why am I being charged the incorrect amount as agreed on the 27th April 2015 at the Telkom store at The Glen and thirdly why am I being charged for something that was not activated?