Vodacom refuse to develop ideas.

I've been trying to get Vodacom to listen to my idea but they just reply to my emails that they deleted my emails without reading them so I will do my utmost to develop my USSD code myself and hopefully they won't try and ***** my idea since they refused to listen to me for the past 3 years. I truly believe that my idea will be of great benefit to the South African citizens and also generate a significant amount of revenue, however, Vodacom isn't interested and I respect their unwillingness to assist me in developing my idea. I would therefore also expect Vodacom to respect my idea once it is up and running.