unfair customer service and support

<p><br />Im gonna start of by clearing the air Im a blacklisted client ... I have been blacklisted for the past 10+ years 6 years ago vodacom gave me a cell contract not worried about my ITC at all I just couldnt get the big contracts. ln this period my ITC has stayed the same mess and every 2 years my contract got upgraded no problem 2 years back they gave me a second contract no problem no questions asked a month ago they gave me a 3 gig data plan added to my one contract no questions asked. So now my one contract is up for an upgrade and I was just humiliated by a staff member in vodaworld in midrand at the vodashop and was told vodacom will not upgrade any of my contracts again because of my itc and this was said out loud infront of other customers she also refused to phone vodacom and said thats my responsibility to do it . She only decided to phone the moment I told her that I refuse to leave until the problem has been resolved . Im such a good client of vodacom that my account is paid in advance they have never had a problem with my account I always pay it I have never missed a payment ... But now my money isnt good enough but it was for over 6 years .But at the same time I have received multiple emails and smses witch I have as proof to thank me for being such a loyal customer and for handling my account so efficiently and reminders that I have a upgrade due but nobody want to give me whats due to me as a loyal customer. ..</p>