Charges to credit card without authorization

What I did was canceled my credit card. I tried Lifetime for a year but they are a huge ripoff. They charged my credit card without my authorization. I had paid in full for a year and when my year was one month left they charged my card. I had paid up to the current month but they charged for the following month. WHAT. I never received a bill email nothing.!!!. So i cancel my credit card and told them to F Off . Large corporate Gyms are a ripoff. All they want is your money and they do not care about fitness!!!!!!!!!