DISGUSTING CUSTOMER SERVICE

I WENT TO VODACOM SHOP AT ABSA TOWERS FOR THE UPGRADE AND WAS TOLD MY ACCOUNT IS IN ARREARS, THEY CANNOT ASSIST ME I LEFT FOR THE OFFICE AND CALLED THE COLLECTIONS I SPOKE TO A GUY CALLED ZIPHO WHO CONFIRMED THAT EVERYTHING IS IN ORDER ACCOUNT IS UP TO DATE.AND TRANSFERRED ME TO UPGRADE AND SPOKE TO A LADY THERE WHO ASSISTED ME WITH THAT AND SAID I WILL GET A CALL TO CONFIRM DELIVERY ,TUESDAY I CALLD AND THE CONSULTANT THAT I WAS TALKING TO SAID SHE WILL SEND AN EMAIL SO THAT I CAN BE CONTACTED AND DELIVERY BE PROCESSED NOTHING HAPPENED , YESTERDAY I TRIED CALLING 082111 THE WHOLE DAY BUT COULDNT GET TO SPEAK TO ANYONE UP TO NOW I DONT KNOW WHATS THE STATUS OF MY UPGRADE.....WHY DO I ALWAYS HAVE TO STRUGGLE WITH VODACOM.....IM TERRIBLE ANNOYED WITH THIS COMPANY