Norton double charging

Norton stopped my 'issue fixing' with a lovely message saying that I needed to up my product key as  the one I had no longer worked and I had used it too many times, it had deleted all my previous Norton protection at this point and said it could only continue the final stage if I brought a new key, I tried to log in to see if this was true and it wouldn't let me. So I spend $60 again to do this only then to log on and find out that I still have 6 months left on my old key and it has 2 more uses on it. You have done nothing but rip me off... Cannot believe I trusted a company like this. Once my time is used I will never use you again, am sick of companies in the world tricking people in order to make more money. I didn't expect it from a company which sells protection you are no better than the crooks that scam into computers....