false advertising

I took an online deal with Telkom, which is still showing online, and I was called by a call centre to process the order, as per the online deal, it shows i should receive a once off 100G of data ,of which is why I took the deal, and when I received the router last week Thursday ,I didn't get the 100G, i called in the customer care, i was transferred from one department to another ,i had to call again and they guy opened a case on Thursday and told me they will get back to me before Thursday, and nobody got back to me, so i then called the call centre today, and advised him of as to what was happening, I told him i wanted to cancel because they don't want to sort their mess, but i was told i need to fill a form, and im well aware that there's a cancellation department ,i told him, and when i told the guy from customer care, he cut the call, I've tried sending them a message online and also on face book, they are still not getting back to me, and days are passing by, and given they don't, I am suing Telkom for false advertising