GATVOL - Vodacom 4G/LTE Not working

I am really fed-up with Vodacom's excesses, for some odd reason my 4G/LTE is not working on my iphone5 ever since I went over from contract to prepaid in Jan 2015, now they say I need to wait 90days before they can assist me as the number shows as autopage customer, I received so many different excesses : network busy, reset the phone, reset network settings, phone autopage, go to a Vodacom shop?? update software what's next? PLEASE can someone assist me with this!!!! Number : ***,