Transfer

I am currently a member at the Zone fitness woman's club in kloof street but have recently moved to Mitchells Plain and would have liked to transfer to the branch in Westgate mall. I have about a year and a half left I my contract and am currently paying R150 a month due to my package having been on promotion at that time. Upon wanting to transfer to the branch in Westgate mall, I was first told that I would have to pay a transfer fee of R150 and that my contract and billing fee would remain as is. We were then told to wait as they lady was going to make sure about the fees and the manager then told me that I would have to pay R150 transfer fee and R185 per month thereafter as that is their rate and that every branch has their own rates. I am disappointed in receiving this information as I was initially told that I would just pay for the transfer fee. I already signed a contract and don't understand why I would have to pay more for a branch that has less facilities than the one in at currently. I feel it is completely unfair and am thinking about cancelling my contract if this is how things are done.