feedback

I lodged a complaint on Saturday the 8/03/2015 and Vodacom was fast to respond to say they will investigate but since then I have not heard anything from them maby they think because its a small issue it's not worth the paperwork but I paid for the Item and want answers as how we can resolve this issue because it was not my fault that they leave previously open and sold stock on the floor for the following customers to sit with old and used stock and the cashiers don't do there job to check the packaging, then we as customers must be inconvenienced!!!