FIT24GYM

I was a member of Fit24 Gym in Northview and they relocated to Rivonia. And due to the distance I couldn't continue with them. I called their offices to find out about the debit as I won't be able to travel to Rivonia. I was told that only the charges will be done to those who are going to relocate to Rivonia. But now we getting debit by gym company, how? I don't no cause I didn't give any consent that gym company to debit my account and they don't my account details. Please assist