I think it's time I changed my network provider

I app**** for the cellphone contract last week and I was asked to send through my documents(ID,payslips and bank statements) and I did that...up to now I haven't received any response from Vodacom..I have been calling Vodacom and everytime I have to hold for too long and they always promise that they will call me and they have never did...it is so annoying to have this kind of treatment from the company which I have been using ever since I owned a cellphone... maybe it's high time for me to change my network provider...I can't tolerate this kind of behaviour...these people can't even pick up that I do have a contract with them...what kind of a sick joke is this?????