shocking service

I am really not happy with service I have recieved from rain I bought sim card & paid R479 for unlimited data bit have never used it even once I have been calling rain the consultant are clueless about the network no one can assist me I was advised to cancel my sim card so a refund can be processed but till today no one bothers to call me to advise me what is happening I am really frustrated with this network if someone is gonna reply please dont tell a consultant is going to call me because all your consultants are clueless I want a manager to call me & process my refund.