Shocking Service. No Replies to 5 Emails asking a simple question.

I recently complained about staff in an MTN Branch who also gave shocking Service. My complaint was very quickly answered by Alice van der Merwe. I in turn comlimented her. However, a simple question has been unanswered for 7 days - I even got asked for my PIN number by Goitsemang Segopolo. Despite answering her and not giving my PIN number I have had no reply. What is MTN trying to prove. I have also now found out that I get no data with my new contract - I was told that 350mb of data is given monthly. How shocking is this. In 2 years time I will certainly be moving away from this company and this is for sure.