SERVICE NOT WORKING

I have activated the Twin call service on my business contract number *** and despite many calls and email requests the data as well as Bis service on my twin call sim card is not working.<br> <br> I therefore cannot get access to my business emails, bbm's etc when using this sim card and Vodacom has failed to address my problem despite my efforts to resolve this. <br> <br> Very, very poor service from a network that claims to be the best.