Don't believe Cell C's **** marketing

Last month I loaded 5gig of data on my cell c contract after viewing Cell c's Data Extenda ad on tv. They market it in such a way to make you believe you can buy a normal data bundle and then extwnd that data with a data extenda bundle. So yesterday I still had 2.5gig left due to expire today and load a 30mb data extenda bundle so it can carry over. Imagine my dissapointment when this morning I wake up to only 30mb data left. So you have to pay more for a data extenda bundle because you can only extend that with another data extenda bundle and the maximum is 1 gig at R149??? I think I will rather go back to MTN who gives me 2gig for R249 and then another 2gig for free. Cell C is like the government. Makes huge promises to get you signed up and then laughs at you afterward and just take your hard earned money. I work online and thought I finally found a great data solution but I guess I just wasted my hard earned money signing up with Cell C.