Billing issue

I took out a new contract with Telkom on the 11th of July at Hyde Park Telkom shop. I was told I could use the sim on the same day by the consultant at the store but because I was porting my number from Vodacom I decided to use the sim once the port was confirmed. the port went thru on the 12th in the morning and then on the 13 th I decided to use the 10 gigs promotional data I was promised. as I was online I got an sms saying I have reached my spend limit. I then decided to call Telkom and I was told they data wasn't loaded yet. I don't understand why I was told to use the sim immediately when data wasn't loaded. why am I being charge usage when im supposed to be getting 10 gigs every month and why isn't anyone getting back to me. I have made so many called to Telkom and no one is helping. they just saying someone will call me and its now almost a month and still this is not sorted.